针对燃烧室新型迷宫复合冷却结构,采用数值模拟方法研究了该冷却结构的流场结构和内外壁温分布情况,获得了结构内部的流场及多层壁温的分布规律,并且计算了席壁层热侧面的压力分布情况。计算结果表明,迷宫复合冷却结构沿轴向的壁温梯度较全气膜冷却结构更加平缓,外侧壁最高温度较全气膜冷却结构低大约200K左右。
The paper studied the cooling structure's flow-field structure and its inside and outside wall teinperature distribution using the numerical simulation method, thus obtaining its inside flow field and multi-layer wall temperature distribution law. It also calculated the static pressure coefficient at the hot side of the multi-layer wall of a combustor's maze composite cooling structure. The calculation results show that the wall temperature gradient along the axis of the maze composite cooling structure is smoother than that of the film cooling structure and that the highest temperature at the outside wall is approximately 200 K lower than that of a film cooling structure.