弹载相控阵天线系留液冷散热设计与优化分析

Design and Optimization Analysis of Liquid Cooling for a Missile-Borne Phased Array Antenna

目的对某相控阵天线开展散热设计与优化分析。方法基于液冷强迫散热设计理论方法,进行某型相控阵雷达天线热设计,制定液冷散热方案。应用CFD仿真软件FloEFD建立流固耦合热仿真模型,对天线散热情况进行热仿真分析,得到该设备关键测试点的温度变化情况。结果热仿真结果表明,整个系留测试试验中,关键监测点的最高温度在允许的工作温度范围内;每个系留测试周期中存在散热冗余时间。结论热仿真分析表明,该设备制定的热设计方案可以满足使用要求,并为设备的设计改进和测试方案的优化提供指导和建议。

Based on the theory and method of water-cooled forced cooling,the thermal design of a phased array radar an-tenna was carried out,and liquid cooling scheme was formulated.The fluid-solid coupling thermal simulation model was built based on the CFD simulation software FloEFD.The temperature change of the key test point on the antenna was introduced by the thermal simulation for the heat dissipation of the antenna.The thermal simulation results showed that the maximum tem-perature of the key test points was within the allowable operating temperature range in the whole tethered test.And there was redundant time for cooling in each test period.Thermal simulation analysis indicated that the thermal design project of this de-vice fulfilled the requirements,which also provides guidance and suggestions for the design improvement of the equipment and the optimization of the test project.