用短周期风洞进行涡轮叶片传热实验的初探
APPLICATION OF SHOCK TUNNEL TO HEAT TRANSFER EXPERIMENTS ON TURBINE BLADE
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摘要: 本文介绍了短周期激波叶栅风洞的结构,原理和实验模型,以及在来流条件为Ma入口=0.21和0.15,Re∞/L=1×107,TO/TW=2.2时,进行涡轮叶片测压和传热实验的初步结果。结果表明10毫秒的实验时间是足够的,目前的实验方案完全可行。Abstract: Transient wind tunnels and their supplementary instrumentation have been used to examine the flow and heat transfer around hypersonic vehicles. The purpose of this paper is to describe their application to turbine cascade testing and refinements of its heat transfer measurement techniques.
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