Flow boiling liquid cooling plate structure and design method thereof

Abstract

The invention discloses a flow boiling liquid cooling plate structure and a design method thereof.The flow boiling liquid cooling plate structure comprises a plate body and regulation blocks, the plate body is provided with an inlet and an outlet, and the multiple regulation blocks are evenly distributed in the plate body and located between the inlet and the outlet; the regulation and control block is provided with an incident flow surface facing the inlet, a back flow surface facing the outlet, a sliding boundary line for connecting the incident flow surface and the back flow surface, an incident flow ridge line and a wake contour line for connecting the incident flow surface and the back flow surface with the plate body respectively, a plurality of micro pits and a plurality of micro grooves which are uniformly formed in the incident flow surface, and a plurality of micro bosses which are uniformly arranged on the back flow surface; through the synergistic effect of macroscopic and microcosmic structural design and function partition, the regulation and control block can effectively regulate and control the vapor-liquid interface evolution process under the condition that strong turbulent flow disturbance is not introduced, and therefore efficient heat exchange and low flow resistance are both considered under the working condition of high heat flux density.

Description

Technical Field

[0001] This invention relates to the field of heat exchange technology, specifically to a flowing boiling liquid cooling plate structure and its design method. Background Technology

[0002] With the rapid development of high heat flux density electronic devices, power modules and advanced energy systems, thermal management systems face more stringent requirements in terms of heat exchange capacity, structural compactness and operational stability. In application scenarios such as high-power chips, data center cooling, high-power lasers and electric vehicle power batteries, the heat flux density per unit area continues to rise, and traditional single-phase liquid cooling methods are gradually becoming unable to meet the needs of efficient and safe heat dissipation.

[0003] Currently, a two-phase cooling technology utilizing the latent heat of phase change of the working fluid to achieve efficient heat removal, namely flowing boiling liquid cooling plates, can achieve a high heat transfer coefficient at a relatively small temperature difference and is considered an important development direction for high heat flux density thermal management. However, during the flowing boiling process, the vaporization of the coolant in the heated channel is accompanied by complex two-phase flow phenomena, including bubble nucleation, growth, slippage, coalescence, retention, and detachment. If bubbles are retained near the wall or form a local vapor film, it can easily lead to problems such as local drying, pressure drop fluctuations, and temperature unevenness, seriously affecting the stability and reliability of the cooling system. To improve these problems, existing flowing boiling liquid cooling plates mostly adopt straight channels combined with needle-shaped, serrated, or strip-shaped fins. Plate structures enhance fluid turbulence and mixing to improve convective heat transfer. However, this type of enhancement mainly achieves heat transfer enhancement by increasing the intensity of flow field disturbance, lacking targeted control over the nucleation location, migration path, and detachment mechanism of bubbles. This often leads to bubble accumulation in local areas and increased backflow interference. At the same time, strong turbulence structures usually significantly increase flow resistance and pump power loss, which is not conducive to improving the overall energy efficiency of the system. In addition, designing liquid-cooled plate turbulence unit structures can improve heat transfer performance and achieve fine control of vapor-liquid phase behavior. However, the design and optimization of such turbulence structures have the disadvantages of large randomness of results, low performance improvement, and inability to simultaneously optimize flow resistance.

[0004] Therefore, there is an urgent need for a liquid-cooled plate structure design method that can effectively guide the behavior of the vapor-liquid interface during the boiling process without increasing flow resistance, so as to promote the timely detachment of bubbles and the uniform heat exchange area, so as to achieve synergistic optimization of heat exchange performance and flow organization. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a flowing boiling liquid cooling plate structure and its design method to solve the technical problem of poor heat exchange capacity of liquid cooling plates in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides a flow boiling liquid-cooled plate structure and its design method, including a plate body and control blocks. The plate body has an inlet and an outlet. A plurality of control blocks are evenly distributed within the plate body and located between the inlet and the outlet. Each control block has a frontal surface facing the inlet, a backal surface facing the outlet, a sliding boundary line connecting the frontal surface and the backal surface, a frontal ridge line and a wake contour line connecting the frontal surface and the backal surface to the plate body respectively, a plurality of micro-pits and a plurality of micro-grooves evenly distributed on the frontal surface, and a plurality of micro-protrusions evenly distributed on the backal surface. Both the frontal surface and the backal surface are crescent-shaped, and the area of ​​the frontal surface is larger than that of the backal surface. The angle between the frontal surface and the plate body is smaller than the angle between the backal surface and the plate body. The micro-pits and micro-grooves are staggered.

[0007] In some embodiments, the control blocks are staggered in the direction from the inlet to the outlet.

[0008] In some embodiments, each of the micro-pits is circular, and the radius of the micro-pit is between 0.1 and 0.2 mm.

[0009] In some embodiments, the width and depth of the microgroove are both between 0.02 and 0.05 mm.

[0010] In some embodiments, each of the micro-protrusions is circular, and the radius of the micro-protrusion is between 0.1 and 0.2 mm.

[0011] In some embodiments, the internal width of the plate is 14 to 16 times the length of the control block.

[0012] In some embodiments, the internal height of the plate is 1.1 to 1.2 times the height of the control block.

[0013] In some embodiments, designing the control block includes the following steps: Step 1: Construct the first reference plane, using the reference point of the control block as the curve equation y1. The design origin is used to draw the airflow ridge line according to the equations; Step 2: On the first reference plane, with the reference point of the control block as the curve equation y3 The design origin is used to draw the trail outline according to the equation; Step 3: Based on the first reference plane, tilt upwards at an angle θ1 to construct a second reference plane. The tilt angle θ1 ranges from 25° to 35°. On the second reference plane, use the control block reference point as the curve equation y2. The design origin is used to draw the slip boundary line based on the equation; Step 4: Connect the midpoints of the updraft ridge, the slip boundary, and the wake contour line to construct the mid-ridge; Step 5: Connect the frontal and back surfaces between the frontal ridge, slip boundary, wake contour line and mid-ridge to form the macroscopic geometric entity of the control block; Step 6: Construct the micro-geometry structure. Add microgrooves and micro-dimples to the upstream surface of the macro-geometry of the control block, and add micro-protrusions to the downstream surface to form the final control block with two scale structures.

[0014] In some embodiments, the y1 The y2 and the y3 mentioned above The mathematical model is as follows: , where L1 is the length of the control block.

[0015] In some embodiments, the mathematical models for y1, y2, and y3 are as follows: , where χ is the position where feature points are extracted from the upstream ridge, the slip boundary, and the wake contour.

[0016] Compared with the prior art, the present invention provides a flow boiling liquid cooling plate structure and its design method, which forms a macroscopic structure of slip boundary line, flow ridge line and wake contour line by setting the frontal surface and backal surface, and forms a microstructure by setting micro-pits, micro-grooves and micro-protrusions. On the one hand, through the synergistic design of macroscopic structure for guiding flow, flow redistribution and drag reduction, as well as microscopic structure for nucleation induction, bubble retention and directional detachment, the phenomena of bubble retention and local drying are effectively suppressed, improving the stability and reliability of boiling heat transfer. On the other hand, passive control of microscale bubble behavior is effectively achieved without the need for external actuators or complex control systems. On the third hand, structural guidance is used to regulate the vapor-liquid interface behavior of the flow boiling process, effectively avoiding the high flow resistance problem caused by simply relying on turbulence enhancement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional diagram of a flowing boiling liquid cooling plate structure provided in an embodiment of the present invention; Figure 2 yes Figure 1 Front view of the central control block; Figure 3 yes Figure 1 Top view of the central control block; Figure 4 yes Figure 1 Left view of the central control block; Figure 5 yes Figure 1 Cross-sectional view of the central control block Figure 6 yes Figure 1 Bubble state in different regions of the central control block; Figure 7 yes Figure 1 Top view; Figure 8 yes Figure 1 A sectional view of the scene; Figure 9 yes Figure 1 The construction process of the central control block structure; Figure 10 yes Figure 1 The structural feature points and feature curves of the control block.

[0018] Explanation of reference numerals in the attached drawings: 1. Plate; 11. Inlet; 12. Outlet; 2. Control block; 21. Frontal surface; 211. Micro-dimple; 212. Micro-groove; 22. Backal surface; 221. Micro-protrusion; 23. Frontal ridge; 24. Slip boundary; 25. Wake contour line; 26. Mid-ridge; 3. Bubble; 4. First reference plane; 5. Second reference plane. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0020] To address the technical problem of poor heat exchange capacity of liquid-cooled plates, researchers conducted extensive studies and found that during the flow boiling process, the nucleation location, initial growth mode, and detachment path of bubbles have a decisive influence on the local heat transfer intensity and the wall rewetting ability.

[0021] By designing a reasonable control structure within the flow channel, not only can the global flow of the liquid cooling plate be guided and redistributed, reducing flow resistance, but the evolution of the vapor-liquid interface can also be passively guided, allowing bubbles to nucleate in a predetermined area, migrate along a specific path, and detach from the heated wall in a timely manner. This enhances boiling heat transfer while preventing bubble retention and localized drying. Based on this understanding, this invention provides a flow-boiling liquid cooling plate structure and its design method. This structure macroscopically guides / redistributes the flow of coolant within the liquid cooling plate on a large scale, reducing the global flow resistance of the liquid cooling plate. Microscopically, it controls the small-scale bubble nucleation, retention, and directional detachment behavior of the coolant. This achieves synergistic control of the coolant's flow-boiling behavior on both structures, enabling effective control of the vapor-liquid interface behavior during the flow-boiling process to enhance heat transfer without increasing flow resistance.

[0022] It should be noted that the flowing boiling liquid cooling plate structure and its design method described in this invention are used in, but not limited to, high heat flux density electronic devices. For ease of explanation, this invention only uses the application of a flowing boiling liquid cooling plate structure and its design method to high heat flux density electronic devices as an example. The principle of applying a flowing boiling liquid cooling plate structure and its design method to other types of equipment is essentially the same as that applied to high heat flux density electronic devices, and will not be elaborated here.

[0023] Please see Figures 1 to 10 ,in Figure 1 This is a schematic diagram of a flowing boiling liquid-cooled plate structure according to an embodiment of the present invention. The flowing boiling liquid-cooled plate structure includes a plate body 1 and control blocks 2. The plate body 1 has an inlet 11 and an outlet 12. A plurality of control blocks 2 are evenly distributed within the plate body 1 and located between the inlet 11 and the outlet 12. Each control block 2 has a frontal surface 21 facing the inlet 11, a backal surface 22 facing the outlet 12, a sliding boundary line 24 connecting the frontal surface 21 and the backal surface 22, and the frontal surface 21... The backflow surface 22 is connected to the plate body 1 by the upstream ridge line 23 and the wake contour line 25, the upstream surface 21 has a number of micro-pits 211 and a number of micro-grooves 212 evenly distributed, and the backflow surface 22 has a number of micro-protrusions 221 evenly distributed. Both the upstream surface 21 and the backflow surface 22 are crescent-shaped, and the upstream surface 21 has a larger area than the backflow surface 22. The angle between the upstream surface 21 and the plate body 1 is smaller than the angle between the backflow surface 22 and the plate body 1. The micro-pits 211 and the micro-grooves 212 are distributed alternately.

[0024] In this embodiment, the macroscopic structure of the slip boundary 24, the ridge line 23 and the wake contour line 25 is formed by setting the frontal surface 21 and the backal surface 22, and the microstructure is formed by setting the micro-pits 211, the micro-grooves 212 and the micro-protrusions 221. On the one hand, through the synergistic design of macroscopic structure for guiding flow, flow redistribution and drag reduction, as well as microscopic structure for nucleation induction, bubble retention and directional detachment, the phenomena of bubble retention and local drying are effectively suppressed, improving the stability and reliability of boiling heat transfer. On the other hand, passive control of microscale bubble behavior is effectively achieved without the need for external actuators or complex control systems. On the third hand, structural guidance is used to regulate the vapor-liquid interface behavior of the flow boiling process, effectively avoiding the high flow resistance problem caused by simply relying on turbulence enhancement.

[0025] The smooth tips of the leading edges of the ridge 23 and the frontal surface 21 enable efficient diversion and guidance of the incoming fluid. The smooth transitions on both sides of the ridge 23 help delay boundary layer separation and reduce leading-edge pressure drag. The back surface 22 behind the slip boundary 24 gradually transitions into a smooth, extended trailing edge, effectively guiding the development of the wake, suppressing the generation of tail vortices, and reducing turbulence intensity, thereby significantly reducing the total flow resistance. The frontal surface 21 has a gentle, smooth shape and continuous curvature, rising upwards from the ridge 23, effectively guiding the airflow to adhere and climb, delaying boundary layer separation, and reducing leading-edge pressure drag. The backflow surface 22 is relatively steep, usually close to the critical slip angle. The airflow rapidly detaches at the top and forms a tail vortex, which enhances the intensity of fluid disturbance. Therefore, the macroscopic structure of the control block 2 can achieve coordinated control of the flow guidance and vortex intensity, thereby achieving effective resistance minimization and tail vortex optimization. This structural feature of the control block 2 not only increases the heat exchange area, but also enhances the orderly flow and flow guidance of the coolant, improves local heat exchange efficiency, and effectively suppresses flow separation and turbulence development, thereby reducing flow resistance and pump power consumption, and achieving efficient, stable and energy-saving heat dissipation.

[0026] In one embodiment, please refer to Figure 1 and Figure 7 Each control block 2 is staggered from the inlet 11 to the outlet 12.

[0027] In this embodiment, the adjacent control blocks 2 exhibit a staggered spatial layout. The rear edge of the previous control block 2 is aligned with the front edge of the next control block 2, forming a relatively staggered arrangement. This cluster arrangement is beneficial for promoting coolant flow, redistributing flow, and reducing energy dissipation. At the same time, it significantly increases the global heat exchange area, effectively suppresses flow separation, and reduces overall flow resistance and pump power consumption.

[0028] In one embodiment, please refer to Figures 2 to 5 Each micro-pit 211 is circular, and the radius of the micro-pit 211 is between 0.1 and 0.2 mm.

[0029] In one embodiment, please refer to Figures 2 to 4 The width and depth of the microgroove 212 are both between 0.02 and 0.05 mm.

[0030] In this embodiment, the flow-facing surface 21 of the control block 2 is provided with a large area of ​​uniformly distributed micro-pits 211. The micro-pits 211 are circular in shape and have a radius between 0.1 and 0.2 mm. At the same time, the flow-facing surface 21 is also provided with micro-grooves 212 along the flow direction, with a width and depth between 0.02 and 0.05 mm. The microgrooves 212 and micro-pits 211 are arranged in an alternating manner to achieve bubble control and rewetting path improvement at the interface. The local geometric depressions or surface changes formed by the combined structure of the microgrooves 212 and micro-pits 211 reduce the nucleation superheat, guide the bubbles to preferentially nucleate at a predetermined position in front of the flow-facing surface 21, and delay the premature detachment of the bubbles at the rear position of the flow-facing surface 21, thereby enhancing the local heat transfer and rewetting process.

[0031] In one embodiment, please refer to Figure 3 and Figure 5 Each micro-protrusion 221 is circular, and the radius of the micro-protrusion 221 is between 0.1 and 0.2 mm.

[0032] In this embodiment, a large area of ​​uniformly distributed micro-protrusions 221 are arranged on the backflow surface 22 of the control block 2. The micro-protrusions 221 are circular in shape with a radius between 0.1 and 0.2 mm. Their structural features are used to guide the bubbles to detach from the heated wall surface in a predetermined direction and enter the mainstream region under the action of fluid shear, change the critical slip angle, and avoid the bubbles from accumulating on the heated surface.

[0033] Furthermore, please refer to Figure 6 Along the flow direction of the coolant, under the action of high heat flux density, the control block 2 is divided into three regions from the leading edge of the front surface 21 to the trailing edge of the back surface 22: the bubble induced nucleation region, the bubble temporary migration region, and the bubble detachment region. A bubble-induced nucleation zone is set on the flow-facing surface 21 of the interface control block 2. Its surface has micro-pits 211, micro-grooves 212 or a combination thereof, which are used to reduce local nucleation superheat and guide bubbles to nucleate preferentially at predetermined positions. The bubble retention and migration zone is located downstream of the bubble-induced nucleation zone. It is used to briefly constrain the bubbles during the initial growth stage of the bubbles, delaying the premature detachment of the bubbles, thereby enhancing the local heat transfer and rewetting process. The bubble detachment zone is located downstream of the interface control block 2. Its structure is asymmetrically arranged relative to the flow channel centerline. It is used to guide the bubbles to detach from the heated wall surface and enter the mainstream zone in a predetermined direction under the action of fluid shear. The bubble-induced nucleation region occurs in the front half of the frontal surface 21. The combination of micro-pits 211 and micro-grooves 212, along with the small-angle upward slope, reduces local nucleation overheating, guides and promotes preferential bubble nucleation at predetermined locations, and enhances interfacial wetting. The bubble temporary migration region occurs in the rear half of the frontal surface 21. The combination of micro-pits 211 and micro-grooves 212 here provides short-term constraint on bubbles during the initial growth stage, delaying premature bubble detachment and thus enhancing local heat transfer and rewetting. When the coolant crosses the slip boundary 24... After entering the backflow surface 22, the micro-protrusions 221 and the large-angle downward slope on the backflow surface 22 provide a large critical slip angle, thereby guiding the bubbles to detach from the wall in a specific direction and enter the mainstream region, avoiding the accumulation of bubbles on the heated surface. The coordinated cooperation of the structures at both the macroscopic and microscopic levels of the above-mentioned control block 2 realizes that the nucleation induction zone, the bubble retention zone and the bubble detachment zone are arranged sequentially along the flow direction. The synergistic effect achieves the directional control of the vapor-liquid interface evolution process, effectively suppresses bubble retention and local drying phenomena, and improves the stability and reliability of boiling heat transfer.

[0034] In one embodiment, the internal width of the plate 1 is 14 to 16 times the length of the control block 2.

[0035] In this embodiment, please refer to Figure 3 and Figure 7 The width of the working area of ​​the liquid cooling plate is W1, and its relationship with the length L1 of the control block 2 is: W1 = (14~16) × L1.

[0036] In one embodiment, the internal height of the plate 1 is 1.1 to 1.2 times the height of the control block 2.

[0037] In this embodiment, please refer to Figure 2 and Figure 8 The relationship between the internal height H2 of plate 1 and the height H1 of control block 2 is: H2 = (1.1 ~ 1.2) × H1.

[0038] Furthermore, please refer to Figure 3 and Figure 7 W2 is the width of control block 2. The distance between the left and right adjacent control blocks 2 is W3, and its relationship with the length L1 of control block 2 is: W3 = (1.05~1.1)×L1; the distance between the front and back adjacent control blocks 2 is L2, and its relationship with the length L1 of control block 2 is: L2 = (1.2~1.3)×L1; the left and right distance W4 between the front and back adjacent control blocks 2 is W4 = (0.45~0.55)×L1.

[0039] In one embodiment, please refer to Figure 9 The design of control block 2 includes the following steps: Step 1: Construct the first reference plane 4, with the reference point of control block 2 as the curve equation y1. The design origin is used to draw the frontal ridge line 23 according to the equation; Step 2: On the first reference plane 4, with the reference point of the control block 2 as the curve equation y3 The design origin is used to draw the wake contour line 25 according to the equation; Step 3: Based on the first reference plane 4, tilt upwards at an angle θ1 to construct the second reference plane 5. The tilt angle θ1 ranges from 25° to 35°. On the second reference plane 5, with the reference point of the control block 2 as the curve equation y2... The design origin is used to draw the slip boundary line 24 according to the equation; Step 4: Connect the midpoints of the upstream ridge line 23, the slip boundary line 24, and the wake contour line 25 to construct the mid-ridge line 26; Step 5: Connect the frontal surface 21 and backal surface 22 between the frontal ridge 23, the slip boundary 24, the wake contour line 25 and the mid-ridge 26 to form the macroscopic geometric entity of the control block 2; Step 6: Construct the micro-geometry structure. Add micro-grooves 212 and micro-pits 211 to the front surface 21 of the macro-geometry entity of the control block 2, and add micro-protrusions 221 to the back surface 22 to form the final control block 2 with two scale structures.

[0040] In one embodiment, please refer to Figure 10 y1 y2 and y3 The mathematical model is as follows: , where L1 is the length of control block 2.

[0041] In this embodiment, in order to adapt to the actual length L1 of the control block 2 required by the liquid cooling plate, the three curve equations y1, y2 and y3 need to be scaled. The scaled curve equation is y1. y2 and y3 .

[0042] In one embodiment, please refer to Figure 10 The mathematical models for y1, y2, and y3 are as follows: , where χ is the location where feature points are extracted from the upstream ridge line 23, the slip boundary line 24, and the wake contour line 25.

[0043] In this embodiment, to facilitate the macroscopic structural design of the control block 2, feature points are extracted and curve fitting is performed on the upstream ridge line 23, the slip boundary line 24 and the wake contour line 25 of the control block 2 to obtain three curve equations y1, y2 and y3.

[0044] To better understand this invention, the following is combined with... Figures 1 to 10 The technical solution of the present invention will be described in detail below: The coolant enters the plate 1 through inlet 11, then flows through the control block 2 and its cluster before exiting from outlet 12. During this process, the macroscopic structural features of the control block 2 (front surface 21, back surface 22) enable the coolant to be guided, drag-reduced, turbulent, and redistributed at the macroscopic scale. Meanwhile, the microscopic structural features of the control block 2 (micro-pits 211, micro-grooves 212, micro-protrusions 221) enable precise control and guidance of the nucleation, growth, and detachment of bubbles at the vapor-liquid interface during the boiling process. This achieves synergistic control of the coolant at both the macroscopic and microscopic scales, effectively suppressing bubble retention and localized drying, improving the stability and reliability of boiling heat transfer, and thus increasing heat transfer efficiency without increasing flow resistance. The results are expected to show that, compared with the traditional rectangular fin structure, the liquid-cooled plate structure composed of the control block 2 and its cluster can reduce flow energy loss by about 40% and increase the heat transfer rate by about 35% compared with the conventional flow-around fin structure, demonstrating significant performance advantages and engineering application potential.

[0045] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A flowing boiling liquid cooling plate structure, characterized in that, include: A plate having an inlet and an outlet; as well as A control block, comprising several control blocks evenly distributed within the plate body and located between the inlet and the outlet, wherein each control block has an incoming flow surface facing the inlet, a outgoing flow surface facing the outlet, a sliding boundary line connecting the incoming flow surface and the outgoing flow surface, an incoming flow ridge line and a wake contour line connecting the incoming flow surface and the outgoing flow surface to the plate body respectively, multiple micro-pits and multiple micro-grooves evenly formed on the incoming flow surface, and multiple micro-protrusions evenly formed on the outgoing flow surface. Both the incoming flow surface and the outgoing flow surface are crescent-shaped, and the area of ​​the incoming flow surface is larger than that of the outgoing flow surface. The angle between the incoming flow surface and the plate body is smaller than the angle between the outgoing flow surface and the plate body. The micro-pits and micro-grooves are staggered.

2. The flowing boiling liquid cooling plate structure according to claim 1, characterized in that, The control blocks are staggered in the direction from the inlet to the outlet.

3. The flowing boiling liquid cooling plate structure according to claim 1, characterized in that, Each of the micro-pits is circular, and the radius of the micro-pit is between 0.1 and 0.2 mm.

4. The flowing boiling liquid cooling plate structure according to claim 1, characterized in that, The width and depth of the microgroove are both between 0.02 and 0.05 mm.

5. The flowing boiling liquid cooling plate structure according to claim 1, characterized in that, Each of the micro-protrusions is circular, and the radius of the micro-protrusion is between 0.1 and 0.2 mm.

6. The flowing boiling liquid cooling plate structure according to claim 1, characterized in that, The internal width of the plate is 14 to 16 times the length of the control block.

7. The flowing boiling liquid cooling plate structure according to claim 1, characterized in that, The internal height of the plate is 1.1 to 1.2 times the height of the control block.

8. A design method for a flowing boiling liquid cooling plate structure, characterized in that, Its application to the flowing boiling liquid cooling plate structure according to any one of claims 1-7, and the design of the control block includes the following steps: Step 1: Construct the first reference plane, using the reference point of the control block as the curve equation y1. The design origin is used to draw the airflow ridge line according to the equations; Step 2: On the first reference plane, with the reference point of the control block as the curve equation y3 The design origin is used to draw the trail outline according to the equation; Step 3: Based on the first reference plane, tilt upwards at an angle θ1 to construct a second reference plane. The tilt angle θ1 ranges from 25° to 35°. On the second reference plane, use the control block reference point as the curve equation y2. The design origin is used to draw the slip boundary line based on the equation; Step 4: Connect the midpoints of the updraft ridge, the slip boundary, and the wake contour line to construct the mid-ridge; Step 5: Connect the frontal and back surfaces between the frontal ridge, slip boundary, wake contour line and mid-ridge to form the macroscopic geometric entity of the control block; Step 6: Construct the micro-geometry structure. Add microgrooves and micro-dimples to the upstream surface of the macro-geometry of the control block, and add micro-protrusions to the downstream surface to form the final control block with two scale structures.

9. The design method of a flowing boiling liquid-cooled plate structure according to claim 8, characterized in that, The y1 The y2 and the y3 mentioned above The mathematical model is as follows: , where L1 is the length of the control block.

10. The design method of a flowing boiling liquid-cooled plate structure according to claim 9, characterized in that, The mathematical models for y1, y2, and y3 are as follows: , where χ is the position where feature points are extracted from the upstream ridge, the slip boundary, and the wake contour.

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