CN217276795U - Temperature field, speed field and solid field coupling experimental system - Google Patents

Abstract

The utility model provides an experimental system for coupling a temperature field, a velocity field and a solid field, which is used to solve the "heat-fluid-solid" strong coupling problem of the temperature field, the velocity field and the solid field in the prior art, including: a transparent experiment Section, heat exchange system and water pump, the transparent experimental section, the heat exchange system and the water pump are connected by pipes to form a circulation system, the transparent experimental section includes a transparent fluid cavity, a heating system and a turbulence component, the transparent experimental section The interior of the fluid chamber is used for fluid circulation, the heating system is used for heating the fluid in the transparent fluid chamber, the turbulence component includes a rigid part and a flexible part, and the flexible part is connected to the rigid part , the turbulence component is used for enhancing the heat convection of the transparent fluid cavity to realize enhanced heat exchange, and the heat exchange system is used for exchanging heat and cooling the liquid in the transparent fluid cavity.

Description

Experimental system for coupling of temperature field, velocity field and solid field

technical field

The utility model relates to the field of thermal fluid-solid coupling, in particular to an experimental system for coupling a temperature field, a velocity field and a solid field.

Background technique

At present, there is no coupled system that can measure temperature field, velocity field and solid field at the same time, especially the "thermal-fluid-solid" strong coupling system of temperature field, velocity field and solid field. Existing related technologies and shortcomings for the measurement of "thermal-fluid-solid" strong coupling system: Through PIV (Partical Image Velocimetry: particle image processing technology), only the velocity vector diagram of the flow field can be obtained, but the deformation of the flexible body cannot be recognized in real time. To obtain the solid field, the contact measurement in the temperature field measurement will change the flow field and cause the temperature field to change accordingly, and the traditional non-contact temperature measurement is mostly the surface temperature, which cannot obtain the real-time cross-sectional temperature distribution of the flow, and it is difficult to achieve non-contact measurement. Simultaneous acquisition of temperature and velocity fields.

SUMMARY OF THE INVENTION

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a temperature field, velocity field, solid field coupling experimental system, for solving the solid field, velocity field, temperature field coupling under strong flow in the prior art The problem.

In order to achieve the above purpose and other related purposes, the present utility model provides a temperature field, velocity field, solid field coupling experimental system, including a transparent experimental section, a heat exchange system and a water pump, the transparent experimental section, the heat exchange system A circulation system is formed by connecting with the water pump through pipes, the transparent experimental section includes a transparent fluid chamber, a heating system and a spoiler component, the interior of the transparent fluid chamber is used for fluid circulation, and the heating system is used for the transparent The fluid in the fluid cavity is heated, the turbulence assembly includes a rigid part and a flexible part, the flexible part is connected to the rigid part, and the turbulence assembly is used to enhance the thermal convection of the transparent fluid cavity to achieve To enhance heat exchange, the heat exchange system is used for heat exchange cooling of the liquid in the transparent fluid cavity.

Optionally, the transparent fluid cavity is made of acrylic material or transparent glass material.

Optionally, the heating system includes a heat-conducting component, a heat-generating component, and a DC stabilized power supply, the heat-generating component and the DC stabilized-voltage power supply are electrically connected to form an energizing circuit, and the heat-conducting component is used to dissipate the heat of the heat-generating component. to the fluid in the transparent fluid cavity.

Optionally, the heat-conducting member is a copper plate engraved with a uniform groove, and the heating member is placed in the groove of the copper plate.

Optionally, a temperature measuring element is also included, and the temperature measuring element is used for the internal temperature of the fluid in the transparent fluid cavity and the temperature of the contact surface of the heat conducting member and the fluid.

Optionally, the spoiler assembly is replaceable in the transparent fluid cavity.

Optionally, the flexible member and the rigid member are detachably connected.

Optionally, the heat exchange system includes a heat exchanger and a refrigeration device, and the heat exchanger is connected with the heat exchange plate through a conduit.

Optionally, a flow meter and a valve are also included, the flow meter is located at the inlet of the transparent experimental section, and the valve is used to control the flow rate in the transparent fluid cavity.

Optionally, the flowmeter is a non-contact flowmeter, and the non-contact flowmeter is used to measure the flow rate in the transparent fluid cavity.

As mentioned above, the experimental system for realizing the coupling of temperature field, velocity field and solid field according to the present invention has at least the following beneficial effects:

1. In the transparent experimental section, the fluid reaches a predetermined pressure through the water pump, the flow rate is measured by the flow meter, and the temperature of the fluid is reached by the heat exchange system, and heat is absorbed by the heating system. The convection enhancement effect of the turbulence system makes the fluid form "heat-fluid-solid" strong coupling in the transparent experimental cavity, and releases heat in the heat exchange system to form a circulation system;

2. The transparent fluid cavity is made of acrylic or transparent glass material, so that the temperature field, velocity field, and solid field under the coupling action of "heat-fluid-solid" can be measured simultaneously;

3. The rigid part and the flexible part can be detachably connected, which can be used to investigate the influence of different shapes, materials and spacing on the heat-fluid-structure coupling effect;

4. The temperature control is realized through the flow measurement of the fluid in the transparent fluid cavity by the flowmeter, the control of the flow rate in the transparent fluid cavity by the valve, and the control of the voltage of the DC stabilized power supply. , and the associated spoiler to realize the control of the solid field, which is conducive to exploring the coupling of temperature field, velocity field and solid field under the action of strong current.

Description of drawings

FIG. 1 shows a schematic structural diagram of an experimental system for realizing the coupling of temperature field, velocity field and solid field according to the present invention.

FIG. 2 is a schematic diagram showing the structure of the transparent experimental section of the present invention.

FIG. 3 shows a schematic diagram of the heating element of the present invention.

Component label description: flow meter 1, transparent experimental section 2, DC stabilized power supply 3, valve 4, water pump 5, heat exchanger 6, refrigeration device 7, transparent fluid cavity 21, steady flow cavity 22, movable cover 23 , Rigid parts 24, flexible parts 25, heat-conducting parts 26, connecting holes 261, heating parts 262.

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

See Figures 1 through 3. It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with this technology, and are not used to limit the implementation of the present invention. condition, therefore does not have technical substantive significance, any modification of structure, the change of proportional relationship or the adjustment of size, without affecting the effect that the utility model can produce and the purpose that can be achieved, all should still fall within the present utility model. The scope of the technical content disclosed by the new model can be covered. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and clarity, and are not used to limit this specification. The applicable scope of the utility model and the change or adjustment of its relative relationship shall be regarded as the applicable scope of the present utility model without substantially changing the technical content.

The following examples are for illustration only. Combinations can be made between the various embodiments, which are not limited to the contents presented in the following single embodiment.

Please refer to FIG. 1 to FIG. 2 , the present invention provides an experimental system for coupling the temperature field, the velocity field and the solid field, including a transparent experimental section 2, a water pump 5, a heat exchanger 6 and a refrigeration device 7, the heat exchanger 6 and the refrigerating device 7 are connected by pipes to form a heat exchange system, the transparent experimental section 2, the water pump 5 and the heat exchange system are connected by pipes to form a water circuit circulation system, and the transparent experimental section 2 includes a transparent experimental cavity body, a spoiler assembly and a heating system, the spoiler assembly is composed of a rigid part 24 and a flexible part 25, the flexible part 25 is fixed on the rigid part 24, and is used to interfere with the fluid in the transparent fluid cavity 21 to form a fluid-solid coupling At the same time, in the transparent experimental section 2, the fluid absorbs heat through the heating system, so that the fluid forms a temperature field, velocity field, and solid field coupling in the transparent fluid cavity 21, and the fluid passes through the water pump. The action reaches the heat exchange system, where heat is released to form a heat circulation system.

In this embodiment, please refer to FIG. 2 , the transparent fluid cavity 21 can be selected from acrylic or transparent glass material, so that the temperature field, velocity field, and solid field of heat-fluid-solid coupling can be measured at the same time. A movable cover plate 23 can be selected at the top of the 21, the bottom of the transparent fluid cavity 21 is a heat conducting member 26, the front part of the transparent fluid cavity 21 is provided with a steady flow cavity 22, and the rear part of the transparent fluid cavity 21 is provided with a turbulent flow The heat-conducting member 26 transfers the heat of the heating member to the fluid, and the fluid obtains a stable flow rate through the steady flow cavity 22 and then interacts with the spoiler component to form a stable "heat-fluid-solid" coupled, the movable cover plate 23 facilitates the disassembly of the spoiler assembly.

In this embodiment, please refer to FIG. 3 , the connection holes 261 are engraved at the evenly spaced left and right sides of the heat-conducting member 26 . The heat-conducting member 26 is fixed on the transparent fluid cavity 21 , and the upper surface of the heat-conducting member 26 is coated with an insulating layer. The fluid contact makes the heating system short-circuit, the lower surface of the heat conducting member 26 is engraved with a uniform groove, the heating member 262 is placed in the uniform groove, the heating element 262 can be selected as a heating wire, and the heating member 262 The heating system is formed by connecting with the DC stabilized power supply 3 through wires, and the heat conducting member 26 is used for transferring the heat of the heating member 262 to the fluid in the transparent fluid cavity 21 .

In this embodiment, please refer to FIG. 2 , the rigid member 24 can be selected as a cylindrical or triangular cylindrical rigid member, the flexible member 25 can be selected as a long flexible sheet, and the rigid member 24 is connected to the transparent fluid cavity. The body 21 is detachably connected. The specific way of realizing the detachable connection is not the focus of this application. This application is only for illustration. Exploration of the influence of coupling effect, after the flexible member 25 is fixed on the rigid member 24, the rigid member 24 and the flexible member 25 can be detachably connected. Here, the detachable connection can be achieved by strapping or clamping. The strong coupling of "heat-fluid-solid" is formed by the action of vibration around the rigid part 24 and the flexible part 25 .

In this embodiment, please refer to FIG. 2 , in order to further explore the effect of the rigid member 24 and the flexible member 23 on enhancing the convection effect of the fluid in the transparent fluid cavity 21 , different sizes, shapes and different sizes and shapes of the thermally conductive members can be selected. The rigid part with the surface distance 26 is clamped with the transparent fluid cavity 21 , and flexible parts of different sizes, shapes and materials can be selected to be connected with the rigid part 24 .

In this embodiment, please refer to FIG. 3 , the heat conducting member 26 can be selected as a copper plate with a uniform thickness, and the copper plate enables the heat of the heating wire to be uniformly transferred to the fluid in the transparent fluid cavity 21 .

In this embodiment, the DC regulated power supply 3 can be selected as a programmable DC regulated power supply. In order to stabilize the temperature of the fluid in the transparent fluid cavity within a certain range, a temperature measuring element can be selected to measure the temperature in the transparent fluid cavity. The temperature of the fluid is measured, and the data is fed back to the programmable DC stabilized power supply through a wire, and the temperature of the fluid in the experimental chamber is stabilized within a certain range through negative feedback.

In this embodiment, please refer to FIG. 1 , the heat exchanger 6 and the refrigeration device 7 are connected by pipes to form a heat exchange system, and the refrigeration device 7 can be selected according to actual requirements. How the refrigeration device 7 realizes refrigeration is the current The prior art will not be repeated here. The fluid absorbs heat through the heating system, releases heat through the heat exchange system, and enters the circulation system again.

In this embodiment, please refer to FIG. 1 , in order to control the fluid flow rate in the transparent experimental section 2, the flowmeter 1 is set at the fluid inlet of the transparent experimental section 2, and the flowmeter 1 can be selected to be non-contact The non-contact type flowmeter can be selected as an ultrasonic flowmeter, so that the tested fluid flow data is sensitive and accurate. Internal flow control.

To sum up, in the experimental section of the present invention, through the combination of the transparent experimental cavity, the turbulence component and the heating system, the fluid forms the coupling of the temperature field, the velocity field and the solid field in the transparent experimental section, which facilitates the analysis of the temperature field. , simultaneous measurement of velocity field and solid field. When it is necessary to analyze the influence of rigid parts of different shapes or materials on the heat-fluid-structure interaction, it can be more convenient to replace the turbulent components inside the transparent experimental cavity. At the same time, the temperature of the heated copper plate can be controlled by adjusting the power supply voltage, and the flow measurement and control of the flow in the transparent experimental cavity can be realized through the flow meter and valve. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (10)

1. an experimental system of temperature field, velocity field, solid field coupling, is characterized in that, comprises: transparent experiment section, heat exchange system and water pump, described transparent experiment section, described heat exchange system and described water pump pass through pipeline Connected to form a circulation system, the transparent experimental section includes a transparent fluid chamber, a heating system and a spoiler component, the interior of the transparent fluid chamber is used for fluid circulation, and the heating system is used for the fluid in the transparent fluid chamber. heating, the turbulence assembly includes a rigid part and a flexible part, the flexible part is connected to the rigid part, the turbulence assembly is used for enhancing the thermal convection of the transparent fluid cavity to realize enhanced heat exchange, the The heat exchange system is used for exchanging heat for the liquid in the transparent fluid cavity. 2 . The experimental system for coupling temperature field, velocity field and solid field according to claim 1 , wherein the transparent fluid cavity is composed of acrylic material or transparent glass material. 3 . 3. The experimental system of coupling of temperature field, velocity field and solid field according to claim 1, wherein the heating system comprises a heat-conducting element, a heating element and a DC voltage stabilized power supply, and the heating element and the DC The constant voltage source is electrically connected to form an electrical circuit, and the heat conducting element is used for transferring the heat of the heating element to the fluid in the transparent fluid cavity. 4 . The experimental system for coupling of temperature field, velocity field and solid field according to claim 3 , wherein the heat-conducting member is a copper plate engraved with a uniform groove, and the heating element is placed in the groove of the copper plate. 5 . Inside. 5. The experimental system for coupling of temperature field, velocity field, and solid field according to claim 3, characterized in that: it further comprises a temperature measuring element, and the temperature measuring element is used for the internal temperature of the fluid in the transparent fluid cavity and The temperature of the surface of the thermally conductive member in contact with the fluid. 6 . The experimental system for coupling temperature field, velocity field and solid field according to claim 1 , wherein the spoiler component is replaceable in the transparent fluid cavity. 7 . 7 . The experimental system for coupling a temperature field, a velocity field, and a solid field according to any one of claims 1 to 5 , wherein the rigid part and the flexible part are detachably connected. 8 . 8 . The experimental system for coupling of temperature field, velocity field and solid field according to claim 1 , wherein the heat exchange system comprises a heat exchanger and a refrigeration device, and the heat exchanger is connected to the heat exchange plate. 9 . connected by a conduit. 9. The experimental system of coupling of temperature field, velocity field and solid field according to claim 1, characterized in that: it also comprises a flowmeter and a valve, the flowmeter is at the entrance of the transparent experimental section, and the valve is used for for controlling the flow in the transparent fluid cavity. 10. The experimental system for coupling of temperature field, velocity field, and solid field according to claim 9, wherein the flowmeter is a non-contact flowmeter, and the non-contact flowmeter is used to measure the transparent Flow in the fluid chamber.

Images