空间辐射散热器液滴层的瞬态辐射换热

采用光线踪迹法结合区域法，考察了壁面的多次反射及各向性微散射的能量传递份额的再分配，导出了两侧均为半透明界面下一维吸收，发射，各向性散射介质的辐射传递系数。

Transient Radiative Heat Transfer in Liquid Droplet Layer of Space Radiator

The radiative transfer coefficients (RTCs) of an one-dimensional, absorption , emission, isotropic scatter medium with two semitransparent boundray surfaces are deduced using the ray tracing methed in combination with Hottel's zonal method, multi-reflection of surfaces and the redistribution of radiative eneny in the case of isotropic scattering are investigated. The dissipation of waste heat at the direction of Z and Y are ignored so that the dripletfilled layer can be regarded as an one-dimensional problem. The transient temperature distribution is numerical simulated using the RTCs in combination with the control-volume method. By comparing with the result for the separetion of variable method, it is proved that the present model and calculation method is valid and more precise.