不同主流进口湍流度下的超音速气膜冷却

工程热物理学报 , 2010, 31(1): 127-129.

1.热科学与动力工程教育部重点实验室清华大学热能工程系,北京,100084

2.热科学与动力工程教育部重点实验室清华大学热能工程系,北京,100084

基金项目: 国家重点基础研究发展规划(973计划)(2007CB210107) 国家自然科学基金重点项目(50736003)

INFLUENCE OF FREE-STREAM TURBULENCE ON SUPERSONIC FILM COOLING

本文通过数值模拟的方法计算并分析主流进口湍流度、冷却流进口高度和进口马赫数对超音速气膜冷却的影响.计算结果表明,主流进口湍流度对超音速气膜冷却有较大影响,增大主流进口湍流度会减弱超音速气膜冷却效率,同时还表明,增大冷却流进口高度以及进口马赫数,能减弱主流湍流度对超音速气膜冷却的影响.

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