Investigation of Internal Flow in Ultra - Highly Loaded Turbine Cascade by PIV Method

作     者：A.Senoo S.MizukiandH.Tsujita 等 

作者机构：AllNipponAirwaysCo.Ltd.1－8－8HanedaAirportOta－kuTokyoJapan144－0041 Dept.ofMechanicalEngineeringHoseiUniversity3－7－2Kajino－machiKoganeiTokyoJaPAN184－8584 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2000年第9卷第3期

页      面：193-198页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 082502[工学-航空宇航推进理论与工程] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0825[工学-航空宇航科学与技术] 0702[理学-物理学] 

主　　题：PIV turbine cascade secondary flow. 

摘      要：The highly loaded turbine blades are able to reduce both the number of blades and the stages of turbojet-engines. In this study, PIV(Particle Image Velocimetry) method is used for the measurements of the secondary flow in ultra-highly loaded turbine blade cascades. The results obtained by the PIV method clearly show the complicated behavior of the secondary flow in the cascade. The horseshoe vortex and the passage vortex are observed inside the cascade. Moreover, the wake generated by the accumulation of the low energy fluid by the passage vortex near the suction side and that discharged toward downstream of the trailing edge has been recognized.