机载电子散热设备气流分布均匀性研究  

Study on Air Distribution Uniformity of Airborne Electronic Cooling Equipment

作　　者：范涛峰[1] 任童 彭孝天 冯诗愚[1] Fan Taofeng;Ren Tong;Peng Xiaotian;Feng Shiyu(Key Laboratory of Aircraft Environmental Control and Life Support Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学航空学院飞行器环境控制与生命保障工信部重点实验室,江苏南京210016

出　　处：《航空科学技术》2020年第8期42-47,共6页Aeronautical Science & Technology

基　　金：中央高校基本科研业务费专项资金;江苏高校优势学科建设工程。

摘　　要：长流程的散热设备经常会出现流量分配不均匀的问题,导致散热设备各处的冷却效果产生较大差异。利用计算流体力学(CFD)对一个采用孔板送风的机载电子散热设备进行了模拟,分析了不同孔径、开孔数及流量对出口均匀度的影响。结果显示开孔数对均匀度的影响大于孔径,流量改变对均匀度影响不大。对长流程孔板形式出口的散热设备设计具有一定的指导作用。Non-uniform flow distribution often occurs in long-flow cooling equipment, which causes large differences in the cooling effect of cooling equipment. A computational fluid dynamics(CFD) simulation was performed on an airborne electronic heat dissipation device using orifice air supply, and the effects of different apertures, opening numbers, and flow rates on outlet uniformity were analyzed. The results show that the number of openings has a greater effect on the uniformity than the diameter of the holes, and the change in flow rate has little effect on the uniformity. It has a certain guiding role in the design of the heat dissipation equipment of the long-flow orifice plate outlet.

关 键 词：机载电子设备 均匀度 孔板 数值模拟 

分 类 号：V221[航空宇航科学与技术—飞行器设计]