| 气膜冷却对涡轮叶片表面压力分布的影响 |
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| 引用本文： | 罗明俊,邓化愚,刘波.气膜冷却对涡轮叶片表面压力分布的影响[J].航空动力学报,1989,4(4):371-372,393. |
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| 作者姓名： | 罗明俊 邓化愚 刘波 |
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| 作者单位： | 燃气涡轮研究所 |
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| 摘 要： | 一、试验设备及试验件试验是在燃气涡轮研究所涡轮叶片综合冷却效果试验器上进行的。其试验设备详见文献1 ]。试验段由七个叶片组成六通道的扇形叶栅。在试验段中 ,除中间一个为主试验叶片外 ,其余六个叶片均为陪衬叶片。在扇形叶栅试验段前、后和叶片冷气进口处 ,都装有总温、总压和静压测试受感部 ,用于监视和测量试验状态参数。鉴于试验器所能提供的参数 (压力、温度和流量 )均达不到发动机真实状态 ,故本试验是在保证叶片几何相似 ,流动相似、热相似和各试验状态折合流量相同的前提下进行的。为了便于各状态试验结果分析比较 ,始终保持…
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EFFECTS OF FILM COOLING ON SURFACE PRESSURE DISTRIBUTION ON TURBINE BLADES |
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| Luo Mingjun,Deng Huayu and Liu Bo.EFFECTS OF FILM COOLING ON SURFACE PRESSURE DISTRIBUTION ON TURBINE BLADES[J].Journal of Aerospace Power,1989,4(4):371-372,393. |
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| Authors: | Luo Mingjun Deng Huayu and Liu Bo |
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| Institution: | Gas Turbine Establishment;Gas Turbine Establishment;Gas Turbine Establishment |
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| Abstract: | Effects of film cooling on the surface pressure distribution on composite air-cooled blades has been investigated experimentlly at medium temperatures and pressures.The effects of the ratio of cooling mass flow to gas mass flow KG,the ratio of gas temperature to coolant temperature K,and the location of film cooling holes on the surface pressure distribution are discussed.It is found from the experimental results that the KG and the location of the film cooling holes have considerable effects on the surface pressure distribution. |
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