一、引言 在高温涡轮叶片尾部的冷却结构中,最有效的方法就是利用冷却空气通过带扰流柱的弦向通道对尾部进行直接强化冷却.由于该通道具有带扰流柱和多出口的特点,使得这种冷却通道的流动与换热问题的研究十分复杂,除了文献[1,2]外,迄今还没有有关的研究报告发表.在文献[1,2]中介绍了放大5倍模拟实验件的流量分配实验和换热实验结果.这些研究表明通道内的扰流柱对空气的换热有很大的增强,沿叶高的 I. INTRODUCTION The most efficient method of cooling the tail of a high-temperature turbine blade is the direct cooling of the tail by the cooling air through the chordwise channel with the spoiler. Since this channel has the features of a spoiler with a multi-outlet , The research on the flow and heat transfer problems of such cooling channels is very complicated, and no relevant research report has been published yet [1] and [5] Flow distribution experiments and heat transfer experiments.These results show that the spoiler in the channel greatly enhances the heat transfer of the air,