为了进一步提高涡轮入口温度,提出一种新型气膜冷却方法~含化学热沉的气膜冷却方法。对于新方法来讲,化学热沉的存在会影响气膜孔下游的流场,从而影响主流与固体壁面的换热。建立简化理想化学热沉模型,采用标准k-ε湍流模型对该方法进行数值模拟,结果表明,化学热沉的存在降低了气膜孔出口下游不远处壁面附近的温度,同时增大了壁面处混合气膜与壁面之间的对流换热系数. In order to further improve the inlet temperature of the turbine, a new method of film cooling, ie, film cooling with chemical heat sink, is proposed. For the new method, the existence of chemical heat sink will affect the flow field downstream of the film hole, thus affecting the mainstream and the solid wall heat transfer. The simplified ideal chemical heat sink model was established and the model was simulated by the standard k-ε turbulence model. The results show that the existence of chemical heat sink reduces the temperature near the wall near the outlet of the film hole and increases the wall Department of mixing film and the wall between the convection heat transfer coefficient.