雷达环控系统极端热负荷的通用准则式研究

文中利用数值方法研究了雷达环控系统的极端热负荷,分析了太阳辐射强度、纬度、天线罩尺寸、天线罩热特性和大气流动对极端热负荷的影响,并利用仿真方法得到了不同条件下的数值解。通过对仿真结果进行数值拟合,给出了天线罩内极端热负荷的通用准则式。该准则式是太阳辐射参数、大气环境参数、天线罩参数、罩内气流参数和地理纬度的函数,可用于快速、准确地计算各类雷达环控系统的极端热负荷。

Study on the Universal Formula of Critical Heat Load of Radar Cooling System

The critical heat load of radar cooling system is numerically studied with a view to the effect of sev- eral parameters, including solar radiant intensity, latitude, geometrical and thermo-physical properties of the antenna cover, and air flow. The numerical results under various working conditions are obtained using simu- lation method. Numerical fitting of simulation results yields a universal formula of critical heat load in antenna cover. This formula is a precise tool for quickly calculating the critical heat load of radar cooling system.