中文摘要：

在分析燃烧室壁面的对流-辐射耦合换热特性基础上，考虑燃烧室热环境与冷却系统间的相互关系，提出了一种以燃烧室材料许用温度为约束的非均匀冷却壁面热特性设计方法。以某型超声速燃烧室为例，采用混合分数平衡化学反应和液滴离散相模型，计算分析了壁面热特性对燃烧室壁面热流构成、热环境及冷却系统热负荷的影响。结果表明，壁面热特性对超声速燃烧室热环境的影响值得重视，非均匀冷却壁面热特性设计能有效减少燃烧室热损失。

英文摘要：

By analyzing the coupled convection and radiation heat transfer to supersonic combustor wall, a method for designing wall thermal characteristics of supersonic combustor was presented. In this design method, the wall temperature distribution, as the thermal boundary conditions of thermal environment in combustor, is allowed to be non-uniform according to the interaction of thermal environment with cooling system and the restriction of bearable temperature of wall materials. For a supersonic combustor, the influences of wall thermal characteristics on wall heat flux components, thermal environment and heat load of cooling system were analyzed by numerical simulation, in which the composition PDF transport model and the discrete phase model of droplets were employed. The results show significant effects of wall thermal characteristics on the combustor thermal environment, and the heat loss from the combustor can be diminished effectively by employing the cooling design with non-uniform wall temperature.