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Cooler structure optimization method suitable for an arc wind tunnel

An optimization method and cooler technology, applied in the fields of instruments, electrical digital data processing, special data processing applications, etc., can solve the problems of cumbersome, complex calculation of cooler capacity, etc., to improve heat exchange efficiency, optimize heat exchange structure characteristics, The effect of fast and efficient cooling

Pending Publication Date: 2019-05-24
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Description
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  • Application Information

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Problems solved by technology

Calculation of cooling capacity is the basis for optimizing the cooler, but the calculation of cooler capacity is complex and cumbersome, requiring multiple calculations and adjustments to achieve satisfactory results

Method used

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  • Cooler structure optimization method suitable for an arc wind tunnel
  • Cooler structure optimization method suitable for an arc wind tunnel
  • Cooler structure optimization method suitable for an arc wind tunnel

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Embodiment Construction

[0033] Attached below figure 1 The present invention will be described in detail.

[0034] The heat exchange coefficient of gas is small, usually 10W / (m 2 ·K)~30W / (m 2 K) or so, so a larger heat transfer area is generally required to achieve sufficient heat transfer. The state parameters of high-temperature gas change greatly during the cooling process. In the early stage of heat exchange, the airflow temperature is high, the heat exchange temperature difference is large, and the total heat exchange heat is relatively large. However, at this time, the gas density is low, the flow velocity is high, and the flow resistance is large. Therefore, the design should consider reducing the flow velocity of the gas as much as possible. As the heat exchange process proceeds, the temperature of the gas gradually decreases and the density increases. In the later stage of heat exchange, the temperature drops to about 500K, and the heat exchange temperature difference with the cooling wat...

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Abstract

A cooler structure optimization method suitable for an arc wind tunnel is realized by the following steps: (1) establishing a cooler structure analysis model for a current cooler structure to be optimized; (2) calculating the cooler structure analysis model by adopting an engineering calculation method, and determining the heat exchange amount of the current cooler structure; Judging whether the heat exchange amount meets the design requirement or not, if not, returning to the step (1), re-establishing the cooler structure analysis model, and if yes, turning to the step (3); (3) calculating the flow resistance of the cooler according to the current cooler structure analysis model, judging whether the flow resistance meets the design requirement or not, if not, returning to the step (1), and re-establishing the cooler structure analysis model; Otherwise, the current cooler structure meets the design requirement.

Description

technical field [0001] The invention relates to a method for optimizing the structure of a cooler suitable for an arc wind tunnel. Background technique [0002] Coolers are indispensable equipment for heat exchange and transfer in modern industrial production. A cooler is a device that transfers heat from a high-temperature fluid to a low-temperature fluid to realize heat energy transfer between fluids at different temperatures, thereby meeting certain process requirements. [0003] In the arc wind tunnel, the main function of the cooler is to reduce the high temperature gas (greater than 5000K) heated by the arc wind tunnel to about 300K ~ 400K by means of convective heat exchange through the high temperature gas flowing out of the diffuser section, and then pass through the exhaust pipe into the vacuum system. The heat exchange efficiency of the cooler will directly affect the running time of the arc wind tunnel. Under the condition of a certain volume of the vacuum tank...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 杨宪宁涂建强欧东斌彭锦龙刘雨翔杨忠凯程奂哲
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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