摘要
基于Aungier的环形扩压器性能分析模型,发展了大涵道比高低压涡轮间过渡流道的一维性能分析方法,并与等角直壁环形扩压器的试验数据进行了比较和验证。在此基础上,应用所发展方法以某涡轮过渡流道为算例,对模型进行了参数化研究,分别分析了涡轮过渡流道中线形式、进口Ma、进口堵塞和进口预旋等因素对涡轮过渡流道压力恢复、损失以及堵塞发展等的影响规律,得出了具有实际指导意义的结论。
Based on the model developed by Aungier for exhaust diffusers, A one dimensional analysis method is developed for intermediate turbine duct （ITD）, and the method is validated against available experiment data for equiangle rectilinear annular diffusers. Besides a parametric investigation is conducted for present method, factors, such as meanline determination, inlet Mach number, inlet blockage and inlet pre-swirl, are analyzed, and their influences on the ITD performance are established, which are useful for engineering application.
出处
《科学技术与工程》
北大核心
2013年第15期4463-4469,4474,共8页
Science Technology and Engineering
关键词
高涵道比发动机
涡轮过渡流道
一维模型
压力恢复系数
总压恢复系数
high bypass ratio turbofan engine
intermediate turbine duct
one dimensional model
pressure recovery coefficient
total pressure recovery
