CN115795981B

CN115795981B - Noise simulation method and device of server, electronic equipment and storage medium

Info

Publication number: CN115795981B
Application number: CN202310067300.0A
Authority: CN
Inventors: 陈强; 王羽茜
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-05-05
Anticipated expiration: 2043-01-18
Also published as: CN115795981A

Abstract

The embodiment of the invention provides a noise simulation method, a device, electronic equipment and a storage medium of a server, which relate to the technical field of servers, and comprise the steps of firstly obtaining a flow field simulation result of a fan monomer, extracting a flow field envelope surface of the fan monomer from the flow field simulation result, then calculating a rotor surface sound source and an internal body sound source of the fan monomer based on the flow field envelope surface, establishing the internal fan sound source of the whole server through moving copy processing of the sound source, and then carrying out noise calculation on the internal fan sound source by adopting an internal acoustic propagation model to obtain a corresponding noise simulation result, thereby optimizing a pneumatic noise simulation flow, enabling the flow field of the fan monomer, the sound source calculation and the acoustic propagation calculation to be mutually independent, only completing noise optimization iteration simulation in the acoustic propagation calculation model, greatly simplifying the noise simulation flow, and improving the calculation precision and the noise optimization efficiency.

Description

Noise simulation method and device of server, electronic equipment and storage medium

Technical Field

The present invention relates to the field of server technologies, and in particular, to a noise simulation method of a server, a noise simulation apparatus of a server, an electronic device, and a computer readable storage medium.

Background

Along with the development of computer technology, the demand of people for computers has increased rapidly, and a server is one of computers, which has the advantages of higher running speed, higher data throughput capability, long-time reliable running and the like compared with a general computer, so that computing services can be continuously and stably provided for enterprises and public institutions or individual users. With the continuous development of server design technology and application scenarios, the technical standards and requirements for servers are also higher and higher, wherein the noise standards are an important ring for evaluating the technical standards of servers, and in the long run, servers conforming to higher noise standards will have greater advantages.

At present, the noise design of a server is mainly concentrated in an actual prototype testing stage, various noise reduction modes are verified by adopting an actual prototype through a testing means, but the efficiency of the method based on the prototype test is lower, the verification noise reduction method is single, meanwhile, the testing structure is basically determined, and the noise reduction optimization design cannot be further guided, so that the capability of establishing a noise simulation technology becomes more important, the general sound field simulation method of firstly calculating a flow field and then acoustically calculating is mainly adopted at present, but the complexity of a sound field is particularly in the server, the space is smaller, the turbulence is larger, the flow field of the sound field is more complex, the calculation accuracy is relatively lower, the noise optimization design of the server is difficult to accurately guide, and the optimization efficiency is low.

Disclosure of Invention

The embodiment of the invention provides a noise simulation method and device of a server, electronic equipment and a computer readable storage medium, which are used for solving or partially solving the problems of low calculation precision and low noise optimization efficiency in the current noise simulation process of the server.

The embodiment of the invention discloses a noise simulation method of a server, which comprises the following steps:

obtaining a flow field simulation result of a fan monomer, and extracting a flow field envelope surface of the fan monomer from the flow field simulation result, wherein the fan monomer comprises a rotor surface and an inner body;

calculating a rotor surface sound source of the rotor surface and an internal body sound source of the internal body based on the flow field envelope surface, and performing mobile copy processing on the rotor surface sound source and the internal body sound source to establish an internal fan sound source of the server;

and acquiring an internal acoustic propagation model of the server, and adopting the internal acoustic propagation model to perform noise calculation on the internal fan sound source to obtain a corresponding noise simulation result.

Optionally, the obtaining a flow field simulation result of the fan unit, and extracting a flow field envelope surface of the fan unit from the flow field simulation result includes:

Obtaining a flow field simulation result of a fan monomer and a fan monomer model corresponding to the flow field simulation result;

and positioning a space coordinate position corresponding to the flow field envelope surface of the fan unit by adopting the fan unit model, and extracting the flow field envelope surface of the fan unit from the flow field simulation result based on the space coordinate position.

Optionally, the positioning, by using the fan monomer model, a space coordinate position corresponding to a flow field envelope surface of the fan monomer includes:

positioning the space coordinates of the flow field enveloping surface of the fan monomer by adopting the fan monomer model;

acquiring space feature coordinates of an internal acoustic propagation model, and comparing the space coordinates with the space feature coordinates;

and if the space coordinates are consistent with the space feature coordinates, determining the space coordinates as space coordinate positions corresponding to the flow field envelope surfaces of the fan units.

Optionally, the method further comprises:

if the space coordinates are inconsistent with the space feature coordinates, the space feature coordinates are used as coordinate comparison, and the space coordinates are adjusted to obtain adjustment coordinates corresponding to the space coordinates;

And taking the adjustment coordinates as space coordinate positions corresponding to the flow field envelope surfaces of the fan monomers.

Optionally, the calculating the rotor plane sound source of the rotor plane and the internal volume sound source of the internal volume based on the flow field envelope plane, and performing mobile copy processing on the rotor plane sound source and the internal volume sound source, and establishing an internal fan sound source of the server includes:

calculating a rotor surface sound source of the rotor surface and an internal body sound source of the internal body based on the flow field envelope surface, and re-dividing an acoustic grid of the flow field envelope surface according to a preset acoustic analysis requirement;

and carrying out mobile copy processing on the rotor surface sound source and the internal body sound source based on the acoustic grid to obtain a fan module structure corresponding to the server, and establishing an internal fan sound source corresponding to the fan module structure.

Optionally, the repartitioning the acoustic grid of the flow field envelope surface according to a preset acoustic analysis requirement includes:

and selecting an original grid region corresponding to the flow field envelope surface in the fan monomer model, and performing grid repartition operation on the original grid region according to a preset acoustic analysis requirement to obtain an acoustic grid corresponding to the flow field envelope surface.

Optionally, the selecting an original grid area corresponding to the flow field envelope surface in the fan monomer model, and performing grid repartitioning operation on the original grid area according to a preset acoustic analysis requirement to obtain an acoustic grid corresponding to the flow field envelope surface includes:

and selecting an original grid region corresponding to the flow field envelope surface in the fan monomer model, and carrying out grid repartitioning operation on the original grid region according to a preset acoustic analysis requirement on the basis of keeping the original model size of the fan monomer model to obtain an acoustic grid corresponding to the flow field envelope surface.

Optionally, the obtaining an internal acoustic propagation model of the server, and performing noise calculation on the internal fan sound source by using the internal acoustic propagation model, to obtain a corresponding noise simulation result, includes:

acquiring an internal acoustic propagation model of the server and space feature coordinates corresponding to the internal acoustic propagation model;

setting a volume sound source boundary and a surface sound source boundary corresponding to the server, and taking the volume sound source boundary and the surface sound source boundary as sound source boundaries, and carrying out coordinate adjustment on the internal fan sound source according to the space characteristic coordinates to obtain corresponding internal sound source coordinates;

Performing acoustic grid division operation on the server according to the internal sound source coordinates to obtain an integral acoustic grid corresponding to the server;

and respectively carrying out sound source calculation and sound propagation calculation on the internal fan sound source based on the integral acoustic grid, and taking results obtained by the sound source calculation and the sound propagation calculation as noise simulation results of the server.

Optionally, the coordinate adjustment of the internal fan sound source is performed according to the space feature coordinate by using the bulk sound source boundary and the surface sound source boundary as sound source boundaries, to obtain corresponding internal sound source coordinates, including:

and taking the body sound source boundary and the surface sound source boundary as sound source boundaries, moving the space position of the internal fan sound source according to the space characteristic coordinates to obtain the internal sound source coordinates corresponding to the internal fan sound source, wherein the space position corresponding to the internal sound source coordinates is consistent with the space position corresponding to the space characteristic coordinates.

Optionally, the method further comprises:

and if the noise simulation result represents that the internal fan sound source of the server does not meet the preset noise requirement, carrying out noise reduction optimization processing on the server.

Optionally, if the noise simulation result indicates that the internal fan sound source of the server does not meet the preset noise requirement, performing noise reduction optimization processing on the server includes:

if the noise simulation result represents that the internal fan sound source of the server does not meet the preset noise requirement, performing acoustic grid repartition operation on the server to obtain an adjusted acoustic grid corresponding to the server;

and carrying out sound source calculation and sound propagation calculation on the internal fan sound source again based on the adjusted acoustic grid until the recalculated noise simulation result represents that the internal fan sound source of the server meets the preset noise requirement.

Optionally, before the obtaining the flow field simulation result of the fan unit, the method further includes:

responding to a simulation flow field establishing operation aiming at a fan monomer, and establishing a simulation flow field corresponding to the fan monomer;

and calculating a flow field simulation result of the fan monomer corresponding to the simulation flow field.

Optionally, the calculating a flow field simulation result of the fan unit corresponding to the simulated flow field includes:

calculating a steady-state flow field and a transient flow field of the fan monomer;

And calculating the speed field of the fan unit, and performing simulation calculation by adopting the steady-state flow field, the transient flow field and the speed field to obtain a flow field simulation result of the fan unit corresponding to the simulation flow field.

Optionally, the calculating the steady-state flow field and the transient flow field of the fan unit includes:

and acquiring a turbulence model corresponding to the fan monomer, and calculating a steady-state flow field and a transient-state flow field of the fan monomer by adopting the turbulence model.

Optionally, the calculating the speed field of the fan unit includes:

calculating the speed field step length of the fan unit by adopting a preset analysis frequency, and calculating the iteration step number of the fan unit by adopting the speed field step length and a preset frequency resolution;

outputting a corresponding speed field calculation result when calculating each speed field step according to the iteration step number;

and taking all the output speed field calculation results as the speed field of the fan unit.

Optionally, the responding to the simulated flow field establishment operation for the fan unit establishes the simulated flow field corresponding to the fan unit, including:

and responding to the simulation flow field establishment operation aiming at the fan units, and establishing front and back diffusion flow fields of the fan units in a finite element modeling mode, wherein the front and back diffusion flow fields are used for fully diffusing fluid flowing through the fan units.

Optionally, the fan unit includes a fan size and a fan length size, and the front-back diffusion flow field includes a fan air inlet end and a fan air outlet end, wherein the size of the fan air inlet end is not less than twice the fan size, and the size of the fan air outlet end is not less than three times the fan length size.

Optionally, the method further comprises:

if the noise simulation result represents that the internal fan sound source of the server meets the preset noise requirement, the noise reduction optimization processing is not performed on the server, and the noise simulation flow of the server is ended.

The embodiment of the invention also discloses a noise simulation device of the server, which comprises:

the flow field envelope surface extraction module is used for obtaining a flow field simulation result of a fan monomer and extracting a flow field envelope surface of the fan monomer from the flow field simulation result, wherein the fan monomer comprises a rotor surface and an inner body;

the internal fan sound source establishing module is used for calculating a rotor surface sound source of the rotor surface and an internal body sound source of the internal body based on the flow field envelope surface, and carrying out mobile copying processing on the rotor surface sound source and the internal body sound source to establish an internal fan sound source of the server;

And the noise calculation module is used for acquiring an internal acoustic propagation model of the server, and adopting the internal acoustic propagation model to calculate the noise of the internal fan sound source so as to obtain a corresponding noise simulation result.

Optionally, the flow field envelope surface extraction module includes:

the flow field simulation result acquisition module is used for acquiring a flow field simulation result of the fan monomer and a fan monomer model corresponding to the flow field simulation result;

the space coordinate position positioning module is used for positioning a space coordinate position corresponding to the flow field envelope surface of the fan unit by adopting the fan unit model, and extracting the flow field envelope surface of the fan unit from the flow field simulation result based on the space coordinate position.

Optionally, the spatial coordinate position positioning module includes:

the space coordinate positioning module is used for positioning the space coordinates of the flow field enveloping surface of the fan unit by adopting the fan unit model;

the space feature coordinate comparison module is used for acquiring space feature coordinates of the internal acoustic propagation model and comparing the space coordinates with the space feature coordinates;

and the space coordinate position determining module is used for determining the space coordinate as the space coordinate position corresponding to the flow field envelope surface of the fan monomer if the space coordinate is consistent with the space feature coordinate.

Optionally, the apparatus further comprises:

the space coordinate adjusting module is used for adjusting the space coordinate by adopting the space feature coordinate as a coordinate comparison if the space coordinate is inconsistent with the space feature coordinate, so as to obtain an adjusting coordinate corresponding to the space coordinate;

and the space coordinate position determining sub-module is used for taking the adjustment coordinates as space coordinate positions corresponding to the flow field envelope surfaces of the fan monomers.

Optionally, the internal fan sound source establishment module includes:

the acoustic grid repartitioning module is used for calculating a rotor surface sound source of the rotor surface and an internal body sound source of the internal body based on the flow field envelope surface, and repartitioning the acoustic grid of the flow field envelope surface according to preset acoustic analysis requirements;

and the fan module structure generating module is used for carrying out mobile copy processing on the rotor surface sound source and the internal body sound source based on the acoustic grid, obtaining a fan module structure corresponding to the server and establishing an internal fan sound source corresponding to the fan module structure.

Optionally, the acoustic mesh repartitioning module is specifically configured to:

Optionally, the noise calculation module includes:

the space feature coordinate acquisition module is used for acquiring an internal acoustic propagation model of the server and space feature coordinates corresponding to the internal acoustic propagation model;

the internal fan sound source coordinate adjustment module is used for setting a volume sound source boundary and a surface sound source boundary corresponding to the server, taking the volume sound source boundary and the surface sound source boundary as sound source boundaries, and carrying out coordinate adjustment on the internal fan sound source according to the space characteristic coordinates to obtain corresponding internal sound source coordinates;

the integral acoustic grid generation module is used for carrying out acoustic grid division operation on the server according to the internal sound source coordinates to obtain integral acoustic grids corresponding to the server;

and the noise calculation result generation module is used for respectively carrying out sound source calculation and sound propagation calculation on the internal fan sound source based on the integral acoustic grid, and taking the results obtained by the sound source calculation and the sound propagation calculation together as a noise simulation result of the server.

Optionally, the internal fan sound source coordinate adjustment module is specifically configured to:

Optionally, the apparatus further comprises:

and the noise reduction optimization processing module is used for carrying out noise reduction optimization processing on the server if the noise simulation result represents that the internal fan sound source of the server does not meet the preset noise requirement.

Optionally, the noise reduction optimization processing module includes:

the server acoustic grid adjustment module is used for carrying out acoustic grid repartitioning operation on the server if the noise simulation result represents that the internal fan sound source of the server does not meet the preset noise requirement, so as to obtain an adjusted acoustic grid corresponding to the server;

and the noise recalculation module is used for carrying out sound source calculation and sound propagation calculation on the internal fan sound source again based on the adjusted acoustic grid until the recalculated noise simulation result represents that the internal fan sound source of the server meets the preset noise requirement.

Optionally, the apparatus further comprises:

the simulation flow field establishing module is used for responding to the simulation flow field establishing operation aiming at the fan monomer and establishing a simulation flow field corresponding to the fan monomer;

and the flow field simulation result calculation module is used for calculating the flow field simulation result of the fan monomer corresponding to the simulation flow field.

Optionally, the flow field simulation result calculation module includes:

the steady-state flow field and transient flow field calculation module is used for calculating the steady-state flow field and the transient flow field of the fan monomer;

the speed field calculation module is used for calculating the speed field of the fan unit, and carrying out simulation calculation by adopting the steady-state flow field, the transient flow field and the speed field to obtain a flow field simulation result of the fan unit corresponding to the simulation flow field.

Optionally, the steady-state flow field and transient flow field calculation module is specifically configured to:

Optionally, the velocity field calculation module includes:

the fan unit iteration step number calculation module is used for calculating the speed field step length of the fan unit by adopting a preset analysis frequency, and calculating the iteration step number of the fan unit by adopting the speed field step length and a preset frequency resolution;

The speed field calculation result output module is used for outputting a corresponding speed field calculation result when calculating one speed field step length according to the iteration step number;

and the speed field determining module is used for taking all the output speed field calculation results as the speed field of the fan unit.

Optionally, the simulation flow field establishment module includes:

the front-back diffusion flow field establishing module is used for responding to the simulation flow field establishing operation of each fan monomer in the server and adopting a finite element modeling mode to establish the front-back diffusion flow field of each fan monomer, wherein the front-back diffusion flow field is used for fully diffusing the fluid flowing through the fan monomer.

Optionally, the apparatus further comprises:

and the noise simulation flow ending module is used for not carrying out noise reduction optimization processing on the server and ending the noise simulation flow of the server if the noise simulation result represents that the internal fan sound source of the server meets the preset noise requirement.

The embodiment of the invention also discloses electronic equipment, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

the memory is used for storing a computer program;

the processor is configured to implement the method according to the embodiment of the present invention when executing the program stored in the memory.

Embodiments of the present invention also disclose a computer-readable storage medium having instructions stored thereon, which when executed by one or more processors, cause the processors to perform the method according to the embodiments of the present invention.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, aiming at the noise simulation flow of the server, firstly, the flow field simulation result of the fan monomer can be obtained, the flow field envelope surface of the fan monomer is extracted from the flow field simulation result, then, the rotor surface sound source of the rotor surface of the fan monomer and the internal body sound source of the internal body are calculated based on the flow field envelope surface, the rotor surface sound source and the internal body sound source are subjected to mobile copying processing, the internal fan sound source of the server is built, then, the internal acoustic propagation model of the server is obtained, and the internal acoustic propagation model is adopted to carry out noise calculation on the internal fan sound source, so that the corresponding noise simulation result is obtained, the pneumatic noise simulation flow is optimized, the noise optimization iterative simulation can be completed only in the acoustic propagation calculation model, the disadvantages that all recalculation is needed after the optimization or error report of the existing pneumatic simulation flow are avoided, the noise simulation flow is greatly simplified, and the calculation precision and the noise optimization efficiency are improved.

Drawings

FIG. 1 is a flow chart of steps of a method for simulating noise of a server according to an embodiment of the present invention;

FIG. 2 is a schematic flow diagram of a fan monomer flow field simulation provided in an embodiment of the present invention;

FIG. 3 is a schematic diagram of a sound field modeling and simulation flow provided in an embodiment of the present invention;

FIG. 4 is a block diagram of a noise simulation apparatus of a server according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a computer-readable storage medium provided in an embodiment of the invention;

fig. 6 is a block diagram of an electronic device provided in an embodiment of the invention.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.

As an example, at present, the noise design of the server is mainly concentrated in an actual prototype testing stage, and various noise reduction modes are verified by adopting an actual prototype through a testing means, but the efficiency of the prototype-based testing method is lower, the verification noise reduction method is single, meanwhile, the testing structure is basically determined, and the noise reduction optimization design cannot be further guided, so that the capability of establishing a noise simulation technology becomes more important, and the current general sound field simulation method of firstly calculating a flow field and then acoustically calculating is mainly adopted, but because of the complexity of a sound field, particularly in the server, for the noise simulation in the server, the internal flow field calculation, the sound source calculation, the acoustic propagation calculation and the like are involved, and each step of calculation must ensure enough precision to ensure the final noise simulation precision, but because the space of the server is smaller, the turbulence is larger, the flow field is more complex, each step of the simulation calculation is required to be carried out aiming at a complete model, the consumption of hardware resources and the calculation time is caused to be wasted, the model utilization rate is low, and the calculation precision is also easy to be relatively lower, so that the noise optimization design of the server is difficult to accurately guided, and the optimization efficiency is low.

Therefore, the high-precision and high-efficiency noise simulation method based on the inside of the server is established, and has important significance for guiding the noise reduction optimization design of the server.

In this regard, one of the core inventions of the embodiments of the present invention is as follows: according to the noise simulation flow of the server, firstly, a flow field simulation result of a fan monomer can be obtained, a flow field envelope surface of the fan monomer is extracted from the flow field simulation result, then a rotor surface sound source of a rotor surface of the fan monomer and an internal body sound source of an internal body are calculated based on the flow field envelope surface, the rotor surface sound source and the internal body sound source are subjected to mobile copying processing, an internal fan sound source of the server is built, then an internal acoustic propagation model of the server is obtained, and the internal acoustic propagation model is adopted to carry out noise calculation on the internal fan sound source, so that a corresponding noise simulation result is obtained, and therefore, the pneumatic noise simulation flow is optimized, the fan monomer flow simulation, the sound source calculation of the server and the acoustic propagation calculation are mutually independent, noise optimization iterative simulation can be completed only in the acoustic propagation calculation model, the disadvantage that all recalculation is required after the optimization or error of the traditional pneumatic simulation flow is avoided, the noise simulation flow is greatly simplified, and the calculation accuracy and the noise optimization efficiency are improved.

Referring to fig. 1, a step flowchart of a noise simulation method of a server provided in an embodiment of the present invention may specifically include the following steps:

step 101, obtaining a flow field simulation result of a fan monomer, and extracting a flow field envelope surface of the fan monomer from the flow field simulation result, wherein the fan monomer comprises a rotor surface and an inner body;

when the sound field of the server is established and simulated calculation is performed, a flow field simulation result of a fan monomer can be used as an input boundary condition of the sound field simulation of the server, in a specific implementation, the flow field simulation result of the fan monomer can be obtained, and a flow field envelope surface of the fan monomer can be extracted from the flow field simulation result, wherein the fan monomer comprises a rotor surface and an internal body, so that the flow field simulation flow of the fan monomer and the sound field simulation flow of the server are processed relatively independently, sound field simulation in the server can be realized based on the flow field simulation result of the fan monomer, namely, a sound field model is generated based on a sound source which is completed through calculation, acoustic pretreatment modeling can be performed based on an acoustic analysis target, and meanwhile fewer calculation nodes are compatible and sufficient accuracy is ensured.

Specifically, in the embodiment of the invention, the establishment of the server sound field simulation flow is based on a lighthead sound analogy theory equation, wherein each integral term mainly comes from the speed data of each node, in actual calculation, integral operation can be performed as long as the consistency of the space coordinates of the flow field calculation result nodes can be ensured, each flow field simulation is inconsistent with the reading mode of acoustic simulation software, and for most software, the space coordinates can be realized through operations such as model translation, rotation and the like if the default space coordinates are consistent.

As an alternative embodiment, the spatial coordinate position of the outer envelope surface of the fan unit can be located, specifically, the spatial feature coordinates of the led-in fan model (i.e. the fan unit model) and the actual acoustic model (i.e. the internal acoustic propagation model of the server) can be compared, for example, the spatial coordinates of the fan unit and the server model fan at the same position can be respectively selected, when the spatial coordinates are consistent, the led-in fan model can be determined to have no problem, when the spatial coordinates are inconsistent, the spatial coincidence can be realized through operations such as translation, rotation and the like, so as to ensure that the spatial coordinate positions of the fan unit model and the internal acoustic propagation model of the server are consistent, and the subsequent sound field simulation calculation can be realized.

In a specific implementation, a flow field simulation result of a fan monomer is obtained, and a flow field envelope surface of the fan monomer is extracted from the flow field simulation result, which may be: and acquiring a flow field simulation result of the fan unit and a fan unit model corresponding to the flow field simulation result, then adopting the fan unit model to locate a space coordinate position corresponding to the flow field enveloping surface of the fan unit, and extracting the flow field enveloping surface of the fan unit from the flow field simulation result based on the space coordinate position. Further, by adopting the fan monomer model, the space coordinate position corresponding to the flow field enveloping surface of the fan monomer can be: and positioning the space coordinate of the flow field envelope surface of the fan unit by adopting the fan unit model, then acquiring the space feature coordinate of the internal acoustic propagation model, comparing the space coordinate with the space feature coordinate, and determining the space coordinate as the space coordinate position corresponding to the flow field envelope surface of the fan unit if the space coordinate is consistent with the space feature coordinate.

In another case, if the spatial coordinates are inconsistent with the spatial feature coordinates, the spatial feature coordinates may be used as a coordinate comparison, and the spatial coordinates may be adjusted, for example, by performing operations such as translation and rotation, to obtain the adjustment coordinates corresponding to the spatial coordinates, and the adjustment coordinates may be used as the spatial coordinate positions corresponding to the flow field envelope surface of the fan unit, so that the fan unit model and the internal acoustic propagation model of the server are ensured to be consistent in spatial coordinate positions through the spatial coordinate comparison method of the model, and the subsequent sound field simulation calculation is realized.

From the foregoing, it can be seen that when the sound field of the server is established and the simulation calculation is performed, the flow field simulation result of the fan unit can be used as the input boundary condition of the sound field simulation of the server, then the flow field simulation can be performed on the fan unit in a special flow field laboratory or other places suitable for performing the flow field simulation operation, then the corresponding simulation result is used as the input of the sound field simulation of the server, specifically, before the flow field simulation result of the fan unit is obtained, the simulation flow field corresponding to the fan unit can be established in response to the simulation flow field establishment operation on the fan unit, and then the flow field simulation result of the flow field corresponding to the simulation flow field of the fan unit is calculated.

As an alternative embodiment, in response to the simulated flow field establishment operation for the fan unit, the simulated flow field corresponding to the fan unit may be established as follows: in response to the simulation flow field establishment operation aiming at the fan monomer, a front and rear diffusion flow field of the fan monomer is established by adopting a finite element modeling mode, wherein the front and rear diffusion flow field is used for fully diffusing fluid flowing through the fan monomer, the fan monomer comprises a fan size and a fan length size, the front and rear diffusion flow field comprises a fan air inlet end and a fan air outlet end, wherein the size of the fan air inlet end is not smaller than twice of the fan size, the size of the fan air outlet end is not smaller than three times of the fan length size, the front and rear diffusion flow field is established based on finite element modeling software and is used for ensuring that high-speed fluid flowing through the fan can be fully diffused, the fluid flow speed change accords with the actual situation, the modeling size requirement is the size requirement of the air inlet end and the air outlet end, the larger the size is close to the actual situation, the higher the accuracy is, but the occupied hardware resources are also higher, and therefore, the size selection of the air inlet end and the air outlet end can ensure the most basic accuracy requirement, and the technical personnel in the field can not set according to the actual situation.

Further, a flow field simulation result of the simulated flow field corresponding to the fan monomer is calculated, which may be: firstly, calculating a steady-state flow field and a transient flow field of a fan monomer, then calculating a speed field of the fan monomer, and carrying out simulation calculation by adopting the steady-state flow field, the transient flow field and the speed field to obtain a flow field simulation result of the fan monomer corresponding to the simulation flow field, so that a detailed flow field simulation model can be established for the fan monomer, thereby obtaining higher flow field simulation precision and further obtaining a sound source with higher precision.

As an alternative embodiment, the calculation of the steady-state flow field and the transient flow field may be performed according to a commonly used turbulence model, and then the calculation of the steady-state flow field and the transient flow field of the fan unit may be: and acquiring a turbulence model corresponding to the fan monomer, and calculating a steady-state flow field and a transient-state flow field of the fan monomer by adopting the turbulence model.

For the calculation of the fan single body speed field, each step of the speed field needs to be output in the calculation process, and the step length

Can be according to +.>

Calculating, wherein->

In order to obtain the maximum analysis frequency, in particular, in the discipline analysis such as vibration and acoustics, whether experiments or simulation are performed, the maximum analysis frequency needs to be analyzed in advance, the maximum analysis frequency can be determined according to factors such as an analysis object and an analysis working condition, and other related parameters are set, a person skilled in the art can evaluate the maximum analysis frequency in advance according to the analysis of the actual problem, and the maximum analysis frequency can be set in a range of 12000 Hz-15000 Hz as a reference in the embodiment of the invention.

Further, the iteration step number N can be as follows

Performing calculation, wherein the frequency resolution +.>

Should beIn practical application, the resolution is smaller and the precision is higher, but the occupied hardware resources are higher, the resolution is higher, the occupied hardware computing resources are fewer, the computing speed is high, but the precision is lower, as a reference, in the embodiment of the invention, the frequency resolution can be set to be 0-10 Hz by ensuring enough computing precision, the threshold interval integrates the computing precision and the computing efficiency, the comprehensive selection can be performed under the numerical value, and it can be known that in order to obtain better computing efficiency and computing precision, the hardware resources are assumed to be enough, the lower resolution can be used for computing, and the invention is not limited.

In a specific implementation, the speed field of the fan unit is calculated as follows: calculating the speed field step length of the fan unit by adopting a preset analysis frequency, calculating the iteration step number of the fan unit by adopting the speed field step length and a preset frequency resolution, outputting a corresponding speed field calculation result according to each calculated speed field step length according to the iteration step number, and taking all the output speed field calculation results as the speed field of the fan unit. When the simulation of the single fan body is completed, a flow field simulation result is obtained, wherein thousands of speed field files can be contained, in practical application, as long as the fan structure is unchanged, repeated calculation is not needed, and the flow field simulation result obtained by the single fan body through one-time simulation can be solidified into the input boundary condition of the subsequent server sound field simulation.

As an example, LES (Large eddysimulation, large vortex simulation) calculation can be performed on a fan monomer to obtain a corresponding flow field simulation result, wherein the large vortex simulation is a spatial average of turbulence pulsation (or turbulence vortex), that is, large-scale vortex and small-scale vortex are separated through a certain filtering function, the large-scale vortex is directly used for simulation, the small-scale vortex is sealed by a model, and in the calculation process, the vortex with a smaller scale than that of the filtering function can be filtered out from a turbulent instantaneous motion equation, so that an equation describing the large vortex is decomposed, the influence of the small-scale vortex on simulation calculation is reduced, and the flow field simulation result is higher in accuracy and more accurate.

102, calculating a rotor surface sound source of the rotor surface and an internal body sound source of the internal body based on the flow field envelope surface, and performing mobile copy processing on the rotor surface sound source and the internal body sound source to establish an internal fan sound source of the server;

after the flow field envelope surface of the fan monomer is extracted, a rotor surface sound source of the rotor surface and an internal body sound source of the internal body can be calculated based on the flow field envelope surface, and the rotor surface sound source and the internal body sound source are subjected to mobile copying processing, so that the internal fan sound source of the server is built, and the simulation result of the flow field of the single fan monomer can be used for realizing the simulation of the sound field of the whole server, and the simulation flow is greatly simplified.

The grid in the imported fan monomer model is a grid divided based on flow field analysis, and may not be suitable for acoustic simulation, then the grid can be divided again according to acoustic analysis requirements, specifically, an original grid area can be selected, and a remmesh (re-gridding) operation is performed, so that on the basis of keeping the original model size, grid division is performed again, in specific implementation, a rotor surface sound source of a rotor surface and an internal body sound source of an internal body are calculated based on a flow field envelope surface, and moving copy processing is performed on the rotor surface sound source and the internal body sound source, so that an internal fan sound source of a server is established, and the method comprises the following steps: the method comprises the steps of calculating a rotor surface sound source of a rotor surface and an internal body sound source of an internal body based on a flow field envelope surface, repartitioning acoustic grids of the flow field envelope surface according to preset acoustic analysis requirements, carrying out mobile copy processing on the rotor surface sound source and the internal body sound source based on the acoustic grids to obtain a fan module structure corresponding to a server, and establishing an internal fan sound source corresponding to the fan module structure, so that sound source items of the whole fan module can be established through flow field result data of one fan unit through means such as grid repartitioning, sound source mobile copy processing and the like, besides ensuring that the sound source items of the fan module are consistent with the flow field, sound source items of other areas are only used for sound propagation calculation, the method has larger modeling freedom degree, verification of various optimization measures can be carried out, and simulation efficiency is greatly improved.

As an alternative embodiment, the acoustic grid of the flow field envelope is repartitioned according to the preset acoustic analysis requirement, which may be: selecting an original grid region corresponding to a flow field envelope surface in a fan monomer model, performing grid repartitioning operation on the original grid region according to a preset acoustic analysis requirement to obtain an acoustic grid corresponding to the flow field envelope surface, further selecting the original grid region corresponding to the flow field envelope surface in the fan monomer model, performing grid repartitioning operation on the original grid region according to the preset acoustic analysis requirement to obtain an acoustic grid corresponding to the flow field envelope surface, and can be as follows: the method comprises the steps of selecting an original grid area corresponding to a flow field envelope surface in a fan monomer model, carrying out grid repartitioning operation on the original grid area according to preset acoustic analysis requirements on the basis of keeping the original model size of the fan monomer model, and obtaining acoustic grids corresponding to the flow field envelope surface, wherein the preset acoustic analysis requirements can be set according to actual conditions, so that the repartitioning of the grids can be realized on the basis of not changing the original fan monomer model, and sound sources in a flow field simulation result in the fan monomer model established based on the flow field are applicable to sound field simulation.

Step 103, obtaining an internal acoustic propagation model of the server, and adopting the internal acoustic propagation model to perform noise calculation on the internal fan sound source to obtain a corresponding noise simulation result.

The method comprises the steps of obtaining an internal acoustic propagation model of a server, carrying out noise calculation on an internal fan sound source by adopting the internal acoustic propagation model, carrying out finite element meshing operation on the server before carrying out noise calculation, carrying out acoustic finite element modeling on the whole server space, carrying out acoustic meshing operation on the server according to the maximum mesh size in the acoustic meshing operation of a convection field envelope surface, filling the server space with 3D (three-dimensional) meshes to obtain an integral acoustic mesh corresponding to the server, specifically, obtaining the internal acoustic propagation model of the server and space feature coordinates corresponding to the internal acoustic propagation model, setting a volume sound source boundary and a surface sound source boundary corresponding to the server, carrying out coordinate adjustment on the internal fan sound source according to the space feature coordinates by taking the volume sound source boundary and the surface sound source boundary as sound source boundaries, carrying out acoustic meshing operation on the server according to the internal sound source coordinates, carrying out sound source calculation and acoustic propagation calculation on the internal fan sound source based on the integral acoustic mesh respectively, and taking the noise obtained by the sound source calculation and the acoustic propagation calculation as simulation results of the server, and realizing simulation results for the server.

As an optional embodiment, taking the boundary of the body sound source and the boundary of the surface sound source as the boundary of the sound source, adjusting the coordinates of the internal fan sound source according to the space feature coordinates to obtain corresponding internal sound source coordinates, which can be specifically: and the volume sound source boundary and the surface sound source boundary are used as sound source boundaries, the space position of the internal fan sound source is moved according to the space feature coordinates, the internal sound source coordinates corresponding to the internal fan sound source are obtained, the space position corresponding to the internal sound source coordinates is consistent with the space position corresponding to the space feature coordinates, and therefore the space position of the internal fan sound source in the server is consistent with the space feature coordinates of the internal acoustic propagation model, and integral operation of sound field simulation is achieved.

Further, after performing the noise calculation, performance scoring may be performed on the server by using the obtained noise simulation result, or targeted noise reduction optimization may be performed on the server based on the noise simulation result, where as an alternative embodiment, when the noise simulation result indicates that the internal noise of the server does not meet the preset noise requirement, noise reduction optimization processing may be performed on the server, specifically, a repartitioning operation may be performed on the entire acoustic mesh of the server, and noise calculation may be performed again based on the repartitioned acoustic mesh, so that the internal noise of the server meets the preset noise requirement through noise reduction optimization or structural adjustment, and specifically, if the noise simulation result indicates that the internal fan sound source of the server does not meet the preset noise requirement, noise reduction optimization processing may be performed on the server: if the noise simulation result indicates that the internal fan sound source of the server does not meet the preset noise requirement, performing acoustic grid repartition operation on the server to obtain an adjusted acoustic grid corresponding to the server, and performing sound source calculation and sound propagation calculation on the internal fan sound source again based on the adjusted acoustic grid until the recalculated noise simulation result indicates that the internal fan sound source of the server meets the preset noise requirement, wherein the preset noise requirement can be set according to actual conditions, such as presetting a noise threshold of 60dB (decibel), and the like, and in practical application, a person skilled in the art can set according to the actual requirements, and the invention is not limited in this respect.

Therefore, for the noise reduction optimization processing of the server, under the condition that the internal noise of the server is large, the whole learning grid of the server can be divided again, and the noise reduction optimization processing is realized in a noise calculation mode again, so that the flow field simulation flow of a fan monomer, the establishment of a fan sound source in the server and other related processes are not required to be repeated, the steps of the noise optimization of the server are greatly simplified, and the noise simulation efficiency and the noise optimization efficiency are improved.

In another case, if the noise simulation result indicates that the internal fan sound source of the server meets the preset noise requirement, it is indicated that the internal noise of the server is within an acceptable range at this time, the internal noise does not have an obvious influence on the normal operation of the server, at this time, the noise reduction optimization processing of the server may not be performed, or the noise reduction optimization processing of the server may be stopped, and the noise simulation flow of the server is ended, so that the noise reduction optimization of the server may be performed when the adjustment is required.

It should be noted that the embodiments of the present invention include, but are not limited to, the foregoing examples, and it will be understood that those skilled in the art may also set the embodiments according to actual requirements under the guidance of the concepts of the embodiments of the present invention, which are not limited thereto.

In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present invention, the following explanation and description are given by way of example:

Referring to fig. 2, a flow diagram of a flow simulation of a fan unit provided in an embodiment of the present invention is shown, where the flow simulation of the fan unit may be performed in a special flow field laboratory or other places suitable for performing the flow simulation of the fan, and in this example, the flow simulation of a single fan unit is taken as an example, and it is to be understood that the present invention is not limited thereto.

S201, responding to a simulation flow field establishment operation aiming at a fan monomer, and establishing a front-back diffusion simulation flow field corresponding to the fan monomer;

s202, acquiring a turbulence model corresponding to a fan monomer, and calculating a steady-state flow field and a transient flow field of the fan monomer by adopting the turbulence model;

s203, calculating the step length and the iteration step number of the speed field of the fan unit, and outputting a corresponding speed field;

s204, adopting a steady flow field, a transient flow field and a speed field to carry out simulation calculation, and obtaining a flow field simulation result of a front-back diffusion simulation flow field corresponding to the fan monomer.

Referring to fig. 3, a schematic diagram of a sound field modeling and simulation flow provided in an embodiment of the present invention is shown, in this example, a flow field simulation result of a single fan is adopted, an internal fan sound source of the whole server is established, noise calculation is performed, and noise reduction optimization processing is performed on the server based on the noise simulation result, which is to be understood that the present invention is not limited.

S301, obtaining a flow field simulation result of a fan monomer and a fan monomer model corresponding to the flow field simulation result;

s302, a fan monomer model is adopted, a space coordinate position corresponding to a flow field enveloping surface of a fan monomer is positioned, and the flow field enveloping surface of the fan monomer is extracted from a flow field simulation result based on the space coordinate position;

s303, calculating a rotor surface sound source of a rotor surface and an internal body sound source of an internal body in a fan unit based on a flow field envelope surface, and repartitioning acoustic grids of the flow field envelope surface according to preset acoustic analysis requirements;

s304, moving and copying the rotor surface sound source and the internal sound source based on the acoustic grid to obtain a fan module structure corresponding to the server, and establishing an internal fan sound source corresponding to the fan module structure;

s305, acquiring an internal acoustic propagation model of a server and space feature coordinates corresponding to the internal acoustic propagation model, setting a volume sound source boundary and a surface sound source boundary corresponding to the server, and carrying out coordinate adjustment on an internal fan sound source according to the space feature coordinates by taking the volume sound source boundary and the surface sound source boundary as sound source boundaries to obtain corresponding internal sound source coordinates;

s306, performing acoustic meshing operation on the server according to the internal sound source coordinates to obtain an integral acoustic mesh corresponding to the server, and performing sound source calculation and sound propagation calculation on the internal fan sound source based on the integral acoustic mesh;

S307, if the calculation result represents that the internal fan sound source of the server does not meet the preset noise requirement, repeating the step S306, if the calculation result represents that the internal fan sound source of the server meets the preset noise requirement, not conducting noise reduction optimization processing on the server, and ending the noise simulation flow.

It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.

Referring to fig. 4, a block diagram of a noise simulation device of a server according to an embodiment of the present invention is shown, which may specifically include the following modules:

the flow field envelope surface extraction module 401 is configured to obtain a flow field simulation result of a fan unit, and extract a flow field envelope surface of the fan unit from the flow field simulation result, where the fan unit includes a rotor surface and an inner body;

An internal fan sound source establishing module 402, configured to calculate a rotor plane sound source of the rotor plane and an internal volume sound source of the internal volume based on the flow field envelope plane, and perform mobile copy processing on the rotor plane sound source and the internal volume sound source, so as to establish an internal fan sound source of the server;

the noise calculation module 403 is configured to obtain an internal acoustic propagation model of the server, and perform noise calculation on the internal fan sound source by using the internal acoustic propagation model, so as to obtain a corresponding noise simulation result.

In an alternative embodiment, the flow field envelope extraction module 401 includes:

In an alternative embodiment, the spatial coordinate position location module includes:

In an alternative embodiment, the apparatus further comprises:

In an alternative embodiment, the internal fan sound source creation module 402 includes:

In an alternative embodiment, the acoustic mesh repartitioning module is specifically configured to:

In an alternative embodiment, the noise calculation module 403 includes:

In an alternative embodiment, the internal fan sound source coordinate adjustment module is specifically configured to:

In an alternative embodiment, the apparatus further comprises:

In an alternative embodiment, the noise reduction optimization processing module includes:

In an alternative embodiment, the apparatus further comprises:

In an alternative embodiment, the flow field simulation result calculation module includes:

In an alternative embodiment, the steady-state flow field and transient flow field calculation module is specifically configured to:

In an alternative embodiment, the velocity field calculation module includes:

In an alternative embodiment, the simulated flow field creation module comprises:

In an alternative embodiment, the fan unit includes a fan dimension and a fan length dimension, and the front-back diffusion flow field includes a fan air inlet end and a fan air outlet end, wherein the size of the fan air inlet end is not less than twice the fan dimension, and the size of the fan air outlet end is not less than three times the fan length dimension.

In an alternative embodiment, the apparatus further comprises:

For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.

In addition, the embodiment of the invention also provides electronic equipment, which comprises: the processor, the memory, store the computer program on the memory and can run on the processor, this computer program realizes each course of the above-mentioned noise simulation method embodiment of server when being carried out by the processor, and can reach the same technical result, in order to avoid repetition, will not be repeated here.

As shown in fig. 5, the embodiment of the present invention further provides a computer readable storage medium 501, where a computer program is stored on the computer readable storage medium 501, and when the computer program is executed by a processor, the processes of the above-mentioned embodiment of the noise simulation method of the server are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is provided herein. The computer readable storage medium 501 is, for example, read-Only Memory (ROM), random access Memory (Random AccessMemory, RAM), magnetic disk or optical disk.

Fig. 6 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the present invention.

The electronic device 600 includes, but is not limited to: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, processor 610, and power supply 611. It will be appreciated by those skilled in the art that the structure of the electronic device according to the embodiments of the present invention is not limited to the electronic device, and the electronic device may include more or less components than those illustrated, or may combine some components, or may have different arrangements of components. In the embodiment of the invention, the electronic equipment comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used to receive and send information or signals during a call, specifically, receive downlink data from a base station, and then process the downlink data with the processor 610; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 601 may also communicate with networks and other devices through a wireless communication system.

The electronic device provides wireless broadband internet access to the user via the network module 602, such as helping the user to send and receive e-mail, browse web pages, and access streaming media, etc.

The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the electronic device 600. The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.

The input unit 604 is used for receiving audio or video signals. The input unit 604 may include a graphics processor (GraphicsProcessing Unit, GPU) 6041 and a microphone 6042, the graphics processor 6041 processing image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphics processor 6041 may be stored in the memory 609 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. Microphone 6042 may receive sound and can process such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 601 in the case of a telephone call mode.

The electronic device 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 6061 and/or the backlight when the electronic device 600 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for recognizing the gesture of the electronic equipment (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 605 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described herein.

The display unit 606 is used to display information input by a user or information provided to the user. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a Liquid crystal display (Liquid CrystalDisplay, LCD), an Organic Light-emitting diode (Organic Light-EmittingDiode, OLED), or the like.

The user input unit 607 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on touch panel 6071 or thereabout using any suitable object or accessory such as a finger, stylus, or the like). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 610, and receives and executes commands sent from the processor 610. In addition, the touch panel 6071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 6071 may be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation thereon or thereabout, the touch operation is transmitted to the processor 610 to determine a type of a touch event, and then the processor 610 provides a corresponding visual output on the display panel 6061 according to the type of the touch event. It will be appreciated that in one embodiment, the touch panel 6071 and the display panel 6061 are two independent components for implementing the input and output functions of the electronic device, but in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to implement the input and output functions of the electronic device, which is not limited herein.

The interface unit 608 is an interface to which an external device is connected to the electronic apparatus 600. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic apparatus 600 or may be used to transmit data between the electronic apparatus 600 and an external device.

The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a storage program area that may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory 609 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 610 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 609, and calling data stored in the memory 609, thereby performing overall monitoring of the electronic device. The processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.

The electronic device 600 may also include a power supply 611 (e.g., a battery) for powering the various components, and preferably the power supply 611 may be logically coupled to the processor 610 via a power management system that performs functions such as managing charging, discharging, and power consumption.

In addition, the electronic device 600 includes some functional modules, which are not shown, and will not be described herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

In addition, the embodiment of the invention may involve the use of user data, and in practical application, the user specific personal data may be used in the scheme described herein within the scope allowed by the applicable legal regulations under the condition of meeting the applicable legal regulations of the country (for example, the user explicitly agrees to the user, and the user is informed practically, etc.).

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A method for simulating noise of a server, comprising:

acquiring an internal acoustic propagation model of the server, and adopting the internal acoustic propagation model to perform noise calculation on the internal fan sound source to obtain a corresponding noise simulation result;

the obtaining the internal acoustic propagation model of the server, and performing noise calculation on the internal fan sound source by adopting the internal acoustic propagation model to obtain a corresponding noise simulation result includes:

2. The method of claim 1, wherein the obtaining a flow field simulation result of a fan unit and extracting a flow field envelope surface of the fan unit from the flow field simulation result comprises:

3. The method of claim 2, wherein using the fan unit model to locate a spatial coordinate position corresponding to a flow field envelope surface of the fan unit comprises:

4. A method according to claim 3, further comprising:

5. The method according to claim 2, wherein the calculating the rotor plane sound source of the rotor plane and the internal volume sound source of the internal volume based on the flow field envelope plane, and performing a moving copy process on the rotor plane sound source and the internal volume sound source, establishes an internal fan sound source of the server, includes:

6. The method of claim 5, wherein said repartitioning the acoustic grid of the flow field envelope surface according to a preset acoustic analysis requirement comprises:

7. The method of claim 6, wherein selecting the original grid region corresponding to the flow field envelope surface in the fan monomer model, performing grid repartitioning operation on the original grid region according to a preset acoustic analysis requirement, and obtaining an acoustic grid corresponding to the flow field envelope surface, comprises:

8. The method according to claim 1, wherein the coordinate adjustment of the internal fan sound source according to the spatial feature coordinates with the bulk sound source boundary and the surface sound source boundary as sound source boundaries to obtain corresponding internal sound source coordinates includes:

9. The method as recited in claim 1, further comprising:

10. The method of claim 9, wherein if the noise simulation result indicates that the internal fan sound source of the server does not meet a preset noise requirement, performing noise reduction optimization on the server includes:

11. The method of claim 1, wherein prior to the obtaining flow field simulation results for a fan unit, the method further comprises:

12. The method of claim 11, wherein the calculating a flow field simulation result for the fan unit corresponding to the simulated flow field comprises:

13. The method of claim 12, wherein the calculating the steady state flow field and the transient flow field of the fan monomer comprises:

14. The method of claim 12, wherein said calculating a speed field of said fan unit comprises:

15. The method of claim 11, wherein the establishing a simulated flow field corresponding to a fan unit in response to a simulated flow field establishment operation for the fan unit comprises:

And responding to the simulation flow field establishment operation aiming at the fan unit, and establishing a front and rear diffusion flow field of the fan unit in a finite element modeling mode, wherein the front and rear diffusion flow field is used for fully diffusing fluid flowing through the fan unit.

16. The method of claim 15, wherein the fan cells comprise a fan dimension and a fan length dimension, and the forward and aft diffusion flow field comprises a fan inlet end and a fan outlet end, wherein the size of the fan inlet end is no less than twice the fan dimension and the size of the fan outlet end is no less than three times the fan length dimension.

17. The method as recited in claim 1, further comprising:

18. A noise simulation apparatus of a server, comprising:

the noise calculation module is used for acquiring an internal acoustic propagation model of the server, and carrying out noise calculation on the internal fan sound source by adopting the internal acoustic propagation model to obtain a corresponding noise simulation result;

wherein the noise calculation module includes:

19. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

the memory is used for storing a computer program;

the processor being configured to implement the method of any of claims 1-17 when executing a program stored on a memory.

20. A computer-readable storage medium having instructions stored thereon, which when executed by one or more processors, cause the processors to perform the method of any of claims 1-17.