摘要
为了分析风道通风孔宽度、抽屉发热量分布、进风流量、进气温度和机柜进出风口布置方式对机柜换热性能的影响,给出抽屉式标准机柜热控制系统的设计步骤,建立了某型抽屉式标准机柜的物理模型,并采用CFD方法对机柜内部通风换热情况进行了数值仿真。结果表明,进出风口布置方式、进风流量及通风孔宽度对机柜换热性能影响很大,抽屉发热量和进气温度与抽屉通风换热性能关系不大。经过研究发现,在标准机柜热控制系统设计过程中,由于气流进出口布置方式受舱内整体布局方案限制,在一定范围内增加进风流量和减小通风孔宽度是改善抽屉对流换热的主要措施。
the objective of this paper is to investigate the influence of inlet flux and inlet temperature and width of ventilation hole and inlet and outlet mode on heat exchange performance of drawer standard chassis and present design steps of heat control system. The ventilation and heat exchange state was simulated by CFD method. The results show that, inlet flux and width of ventilation hole and inlet and outlet mode have more influence on heat exchange performance of standard chassis, moreover, drawer heat distribution and input temperature was not sensitive to heat exchange performance of standard chassis. In heat control system design of standard chassis, because inlet and outlet mode depend on total layout of apace vehicle, increasing inlet flux and decreasing width of ventilation hole in a scale are main ways to improve the heat exchange performance of standard chassis.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2009年第1期332-337,共6页
Journal of Astronautics
关键词
空间站
标准机柜
抽屉式
换热性能
数值模拟
Space station
Standard chassis
Drawer
Heat exchange performance
Numerical simulation
