载人飞船返回舱着陆待援段换热性能研究

在对载人飞船着陆待援段返回舱换热过程中各传热途径的量级范围及影响因素进行计算分析和对比的基础上，简化返回舱传热模型，提出返回舱综合换热系数的概念；并通过载人飞船返回舱换热试验对理论分析进行了验证，获取了返回舱综合换热系数的工程数据，所获数据可用于实现长时间地面待援期间返回舱内热环境的快速预示。

Heat transfer performance of manned spacecraft re-entry module in the phase of landing and waiting for rescue

The heat transfer of the manned spaceship’s re-entry module in the landing stage is analyzed. By analyzing various related heat transfer approaches, the heat transfer models are simplified, and the concept of the Composited Heat Transfer Coefficient is put forward. The formula for the composited heat transfer coefficient is derived, and its value is determined after measuring the air temperature within and outside the landed cabin in the laboratory environment. The obtained engineering data could be used for predicting the temperature inside the landed cabin during the long time waiting for rescue.