中文摘要：

以燃烧室新型迷宫复合冷却结构为研究对象，取燃烧室新型迷宫：复合冷却结构的一块瓦块，并在某型航空发动机原型气膜冷却火焰筒相同位置切出尺寸相等的1块，在流量、吹风比与实际流场相同的条件下分别对它们的三维流场和壁温进行了数值模拟，获得了其壁温及冷却效率的分布规律，并与原型火焰筒进行了对比。研究表明：相对某型航空发动机燃烧室原型火焰筒，该冷却结构的冷却效率高，流场分布均匀，温度梯度小。

英文摘要：

In order to gain the wall temperature and cooling efficiency distribution characteristics of the maze composition structure in the combustor, a three -dimensional numerical model is employed for its flow field and temperature distribution compared with that of the prototype. The results show that the composition structure works better in cooling efficiency, flow field and temperature distribution. Thus it provides beneficial references to the design of the maze composition structure and the experimental investigation in its cooling performance.