摘要
本文综述了当前航空发动机涡轮叶片冷却技术的研究情况.着重介绍了气膜冷却、涡轮叶片内流冷却技术和气膜孔流量系数的研究进展.指出了内流冷却和外部气膜冷却相互影响,在冷却结构设计中应予以考虑。
The paper reviews the development of aero - turbine blade cooling technologies. Particular emphasis is given to the development of film cooling, internal cooling technologies and film hole discharge coefficients. It is pointed out that internal cooling has significant influence on film hole discharge coefficients, in turn affects performance of film cooling. This should be considered in turbine blade cooling design.
出处
《燃气轮机技术》
2005年第4期25-33,38,共10页
Gas Turbine Technology
关键词
涡轮叶片
气膜冷却
内流通道
流量系数
turbine blade
film cooling
internal passage
discharge coefficient
