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Quantitative detection system and method for cooling air stagnation area of low-profile-rate divergent channel

A technology for cooling air and quantitative detection, which is applied in aerodynamic testing, testing of machine/structural components, measuring devices, etc., to achieve the effect of strong operability, efficient performance evaluation, and realization of performance evaluation.

Pending Publication Date: 2021-06-25
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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Problems solved by technology

Existing measuring instruments and equipment cannot conveniently and accurately measure this indicator

Method used

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  • Quantitative detection system and method for cooling air stagnation area of low-profile-rate divergent channel
  • Quantitative detection system and method for cooling air stagnation area of low-profile-rate divergent channel
  • Quantitative detection system and method for cooling air stagnation area of low-profile-rate divergent channel

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Embodiment Construction

[0035] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] The present invention firstly provides a quantitative detection system for the cooling air stagnation area of ​​the low-profile rate gradual expansion channel. The system is arranged at the front end of the low profile rate gradual expansion channel model. Drives pumps, smoke generators, agitators, flow meters, and gray scalers, where:

[0037] The cooling air-driven pump, agitator, flowmeter and standard channel / low profile rate gradual expansion channel model are connected in series through pipelines in se...

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Abstract

The invention provides a quantitative detection method for a cooling air stagnation area in a low-profile-rate divergent channel in order to realize quantitative detection of the area of the cooling air stagnation region in a side wall channel of a forced air cooling case of airborne electronic equipment. According to the method, measurement of the stagnation region area is creatively converted into measurement of the channel projection gray scale, the method is simple, convenient and easy to implement, operability is high, invasion into the channel flow field is not needed, and the detection result cannot be influenced by the use of a measuring instrument in the measurement process. By adopting the detection method, the area of the cooling air stagnation area in the low-profile-rate diverging channel can be accurately obtained, so advantages and disadvantages of various flow guide structures in the channel can be scientifically evaluated.

Description

technical field [0001] The invention belongs to the technical field of thermal management of airborne electronic equipment, and relates to a quantitative detection method for a cooling air stagnation area in a gradually expanding channel with a low profile ratio. Background technique [0002] Forced air cooling is a widely used thermal management method in airborne electronic equipment. When the electronic equipment chassis adopts the forced air cooling mode of external air supply for heat dissipation, the cooling air in the external air duct needs to flow through the side wall channel of the chassis. A gradually expanding channel with a low profile ratio is formed in the side wall of the chassis from the inlet of the air duct to the core heat exchange area. That is, the channel gradually expands at the entrance, and the channel height is relatively low relative to the length and width, which can be regarded as a two-dimensional flow. When the cooling air flows into such a...

Claims

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Application Information

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IPC IPC(8): G01M9/06G01B11/28G06T7/62
CPCG01M9/06G01B11/28G06T7/62
Inventor 吴波
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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