CN109488664A - Fluid oscillating device - Google Patents
Fluid oscillating device Download PDFInfo
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- CN109488664A CN109488664A CN201811244180.2A CN201811244180A CN109488664A CN 109488664 A CN109488664 A CN 109488664A CN 201811244180 A CN201811244180 A CN 201811244180A CN 109488664 A CN109488664 A CN 109488664A
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- wall face
- straight wall
- angle
- oscillating device
- fluid oscillating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/22—Oscillators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of fluid oscillating device, including four runners, each runner includes: import converging transition (1), diffusion chamber (2), flow guiding dummy club (3), outlet diffuser (4)；The converging transition (1) is connected with diffusion chamber (2), and flow guiding dummy club (3) is placed among diffusion chamber (2), and outlet diffuser (4) is connected with diffusion chamber (2).The structure of fluid oscillating device provided by the invention, circumference array can be by the structure of fluid oscillating device so that fluid can generate the oscillation in two dimensions in static runner.
Description
Technical field
The present invention relates to fluid dynamics techniques fields, and in particular, to a kind of fluid oscillating device.
Background technique
Fluidic oscillator originates from the end of the fifties in last century and the beginning of the sixties, most early in aerodynamic scope as flow
Control device is the hydrodynamics expert of US Airways space flight department and the fluid control technology that Electronics Specialist is created jointly.
The basic principle is that there is the outlet of oscillator alternate by the special construction and correlation electronics principle of oscillator itself
Oscillating jet.The fluid of fluidic oscillator is flowed by entrance, and power stream is since jet diffusion and Involving velocity deflect and produce
Raw wall attachment effect, using the design of special construction, bistable power stream will be connected in the two side walls adjacent with main channel
One, and switch over power stream between two stable states by the input control of low-momentum.Due to high momentum master
Jet stream is used as robust switch logical device by a low-momentum control injection switching, these devices.So that flowing generates instead
Feedback, power stream toggles between two stable states under the action of controlling stream, to generate periodic swinging.
In fluid control application, fluidic oscillator has very strong robustness and fault-tolerance under various operating conditions.
Have many advantages, such as that structure is simple in terms of mechanical structure, movement-less part, do not depend on driving device, therefore is widely used in aviation
The fields such as space flight, hydraulic system and petrochemical industry.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of fluid oscillating devices.
A kind of fluid oscillating device provided according to the present invention, including four runners, each runner include: that import is tapered
Section, diffusion chamber, flow guiding dummy club, outlet diffuser；The converging transition is connected with diffusion chamber, and flow guiding dummy club is placed among diffusion chamber,
Outlet diffuser is connected with diffusion chamber.
Preferably, the import converging transition is the contraction structure for the tapered face L1 composition that angle is α, and angle is that α is tapered
The angle of face L1 and central axis plane L9.
Preferably, the angle [alpha] is 6.1 °, and the length of tapered face L1 is 57.1mm.
Preferably, the diffusion chamber inner wall is to be sequentially connected straight wall face, and sequentially connected straight wall face includes: straight wall face
L2, straight wall face L3, straight wall face L4, wherein the angle of straight wall face L3 and straight wall face L4 is γ.
Preferably, the straight wall face L2 length is 108.1mm, and straight wall face L3 length is 250mm, and straight wall face L4 length is
Angle γ=80 ° of 80.9mm, straight wall face L3 and straight wall face L4.
Preferably, the flaring angle of the flow guiding dummy club is β, and β is the angle of straight wall face L7 and central axis plane, flow guiding dummy club
Including sequentially connected straight wall face L5, curved wall face R1, straight wall face L6, curved wall face R2, straight wall face L7.
Preferably, flaring angle beta=22.5 ° of the flow guiding dummy club, straight wall face L5 length are 61mm, the half of curved wall face R1
Diameter is 30mm, and the length of straight wall face L6 is 168.2mm, and the radius of curved wall face R2 is 4.3mm, and the length of straight wall face L7 is
216.3mm。
Preferably, the outlet diffuser is the flaring mechanism that angle is θ, and θ is the folder for extending side L8 and central axis plane
Angle.
Preferably, θ=39.2 °.
Preferably, four runners are by circular array, to differ an angle of 90 degrees distribution between each adjacent channels.
Compared with prior art, the present invention have it is following the utility model has the advantages that
Fluid oscillating device provided by the invention, the structure of circumference array can by the structure of fluid oscillating device from
And fluid is enabled to generate the oscillation in two dimensions in static runner.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the inner flow passage diagrammatic cross-section of fluid oscillating device according to the present invention.
Fig. 2 is the inner flow passage structural schematic diagram of fluid oscillating device according to the present invention.
Fig. 3 is the overall structure diagram of fluid oscillating device according to the present invention.
It is shown in figure:
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
A kind of fluid oscillating device provided according to the present invention, including four runners, each runner include: import converging transition
1, diffusion chamber 2, flow guiding dummy club 3, outlet diffuser 4；The converging transition 1 is connected with diffusion chamber 2, and flow guiding dummy club 3 is placed in diffusion chamber 2
Among, outlet diffuser 4 is connected with diffusion chamber 2.Further, in the fluid oscillating device, stream is passed through by converging transition 1
Body, fluid passes through diffusion chamber 2, under the action of flow guiding dummy club 3, projects from the outlet oscillation of diffuser 4.
Specifically, the import converging transition 1 is the contraction structure for the tapered face L1 composition that angle is α, and angle is that α is tapered
The angle of face L1 and central axis plane L9.
Specifically, the angle [alpha] is 6.1 °, and the length of tapered face L1 is 57.1mm.
Specifically, 2 inner wall of diffusion chamber is to be sequentially connected straight wall face, and sequentially connected straight wall face includes: straight wall face
L2, straight wall face L3, straight wall face L4, wherein the angle of straight wall face L3 and straight wall face L4 is γ.
Specifically, the straight wall face L2 length is 108.1mm, and straight wall face L3 length is 250mm, and straight wall face L4 length is
Angle γ=80 ° of 80.9mm, straight wall face L3 and straight wall face L4.
Specifically, the flaring angle of the flow guiding dummy club 3 is β, and β is the angle of straight wall face L7 and central axis plane, and water conservancy diversion is convex
Platform includes sequentially connected straight wall face L5, curved wall face R1, straight wall face L6, curved wall face R2, straight wall face L7.
Specifically, flaring angle beta=22.5 ° of the flow guiding dummy club 3, straight wall face L5 length are 61mm, curved wall face R1's
Radius is 30mm, and the length of straight wall face L6 is 168.2mm, and the radius of curved wall face R2 is 4.3mm, and the length of straight wall face L7 is
216.3mm。
Specifically, the outlet diffuser 4 is the flaring mechanism that angle is θ, and θ is the folder for extending side L8 and central axis plane
Angle.
Specifically, θ=39.2 °.
Specifically, four runners are by circular array, to differ an angle of 90 degrees distribution between each adjacent channels.
Below by preference, the present invention is more specifically illustrated.
Embodiment 1:
Present embodiments provide a kind of fluid oscillating device, including import converging transition 1, diffusion chamber 2, flow guiding dummy club 3, outlet
Diffuser 4；Wherein:
The import converging transition 1 is connected with diffusion chamber 2, and flow guiding dummy club 3 is placed among diffusion chamber 2, outlet diffuser 4 and expansion
It dissipates chamber 2 to be connected, overall structure is put straight up around 4 parts of center circumferential array, whole device.
The import converging transition be an angle be α=6.1 °, the contraction structure that length is L1=57.1mm.
The diffusion chamber inner wall is connected using straight wall face with curved wall face, including is sequentially connected straight wall face L2=
108.1mm, straight wall face L3=250mm, straight wall face L4=80.9mm, wherein L3, L4 angle γ=80 °.
It is β=22.5 ° that the flow guiding dummy club entrance, which is flaring angle, including is sequentially connected straight wall face L5=61mm, bent
Wall surface R1 (radius, subsequent R meaning are identical)=30mm, straight wall face L6=168.2mm, curved wall face R2=4.3mm, straight wall face L7=
216.3mm。
The outlet diffuser is the divergent structure that an angle is θ, θ=39.2 °.
The fluid oscillating apparatus structure is distributed 4 parts by circular array, with an angle of 90 degrees.
Further, in the fluid oscillating device, fluid is passed through by import converging transition, fluid passes through diffusion chamber,
Under the influence of flow guiding dummy club, projected from outlet diffuser oscillation.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of fluid oscillating device, which is characterized in that including four runners, each runner includes: import converging transition (1), expands
Dissipate chamber (2), flow guiding dummy club (3), outlet diffuser (4)；The converging transition (1) is connected with diffusion chamber (2), and flow guiding dummy club (3) is set
Among diffusion chamber (2), outlet diffuser (4) is connected with diffusion chamber (2).
2. fluid oscillating device according to claim 1, which is characterized in that it is α's that the import converging transition (1), which is angle,
The contraction structure that tapered face L1 is constituted, angle is the angle that α is tapered face L1 and central axis plane L9.
3. fluid oscillating device according to claim 2, which is characterized in that the angle [alpha] is 6.1 °, the length of tapered face L1
Degree is 57.1mm.
4. fluid oscillating device according to claim 1, which is characterized in that diffusion chamber (2) inner wall is successively to connect
Straight wall face is connect, sequentially connected straight wall face includes: straight wall face L2, straight wall face L3, straight wall face L4, wherein straight wall face L3 and straight wall face
The angle of L4 is γ.
5. fluid oscillating device according to claim 4, which is characterized in that the straight wall face L2 length is 108.1mm, directly
Wall surface L3 length is 250mm, and straight wall face L4 length is 80.9mm, angle γ=80 ° of straight wall face L3 and straight wall face L4.
6. fluid oscillating device according to claim 1, which is characterized in that the flaring angle of the flow guiding dummy club (3) is
β, β are the angle of straight wall face L7 and central axis plane, and flow guiding dummy club includes sequentially connected straight wall face L5, curved wall face R1, straight wall face
L6, curved wall face R2, straight wall face L7.
7. fluid oscillating device according to claim 6, which is characterized in that the flaring angle beta of the flow guiding dummy club (3)=
22.5 °, straight wall face L5 length is 61mm, and the radius of curved wall face R1 is 30mm, and the length of straight wall face L6 is 168.2mm, curved wall face
The radius of R2 is 4.3mm, and the length of straight wall face L7 is 216.3mm.
8. fluid oscillating device according to claim 1, which is characterized in that it is θ's that the outlet diffuser (4), which is angle,
Flaring mechanism, θ are the angle for extending side L8 and central axis plane.
9. fluid oscillating device according to claim 8, which is characterized in that θ=39.2 °.
10. a kind of fluid oscillating device according to claim 1, which is characterized in that four runners pass through circle
Column, to differ an angle of 90 degrees distribution between each adjacent channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244180.2A CN109488664B (en) | 2018-10-24 | 2018-10-24 | Fluid oscillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244180.2A CN109488664B (en) | 2018-10-24 | 2018-10-24 | Fluid oscillation device |
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| Publication Number | Publication Date |
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| CN109488664A true CN109488664A (en) | 2019-03-19 |
| CN109488664B CN109488664B (en) | 2020-12-18 |
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| CN201811244180.2A Active CN109488664B (en) | 2018-10-24 | 2018-10-24 | Fluid oscillation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613349A (en) * | 2020-05-29 | 2020-09-01 | 上海交通大学 | Micro-gas removal device and method based on fluid self-oscillation and micro-interface reinforcement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613349A (en) * | 2020-05-29 | 2020-09-01 | 上海交通大学 | Micro-gas removal device and method based on fluid self-oscillation and micro-interface reinforcement |
| CN111613349B (en) * | 2020-05-29 | 2023-08-08 | 上海交通大学 | Trace gas removal device and method based on fluid self-oscillation and micro-interface reinforcement |
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| Publication number | Publication date |
|---|---|
| CN109488664B (en) | 2020-12-18 |
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