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为了给载人航天器热设计提供依据，考核热控系统的适应能力以及确定热湿控制参数。发展了材料－温度－湿度保持技术，以实现微重力条件下导热－对流－辐射换热与传质稳态系统的地面相似模拟。通过调整壁面热流密度分布，可以使尺寸适当缩小后的模型的材料、温度和湿度同时保持不变，同时还能抑制由重力引起的自然对流的作用，从而实现地面模型与微重力场中原型流动、换热和传质相似。并用数值方法对均匀进风条件下的流动、换热和传质的相似性进行了验证。
In order to provide the basis for thermal design of manned spacecraft, evaluate the adaptability of thermal control system and determine the parameters of heat and humidity control. The material-temperature-humidity retention technique was developed to simulate the ground-based simulation of the thermal-convection-radiation heat transfer and mass transfer steady-state systems under microgravity. By adjusting the wall heat flux density distribution, the material, temperature and humidity of the properly dimensioned model can be kept unchanged at the same time, and the natural convection caused by gravity can be restrained so as to realize the prototype flow in the ground model and microgravity field , Heat transfer and mass transfer similar. The similarity of flow, heat transfer and mass transfer under uniform inlet condition was verified by numerical method.