VORTICITY DIAGNOSIS IN THROUGHFLOW DESIGN OF HIGHLY LOADED FAN
A throughflow design method solving axisymmetric Euler equations with vorticity diagnosis is presented. The throughflow method is verified by calculating a transonic fan stage with 3D CFD and experiment results. Vorticity diagnosis as a new criterion in throughflow design is proposed. Vorticity especially circumferential vorticity are used to estimated the quality of throughflow design for highly loaded fan in this paper. The regions where flow separation often occurs in 3D flow can be probed beforehand in throughflow. Therefore swirl distribution which is very critical in throughflow design is prescribed with vorticity diagnosis guidance in this study. Two design examples of highly loaded fans with different swirl distributions are compared based on vorticity diagnosis in throughflow, and validated using 3D CFD solver finally. It demonstrates that vorticity diagnosis can be used to guide throughflow design.
Hong Wu Qiushi Li Yahui Song Sheng Zhou Jiezhi Wu Yantao Yang
National Key Lab on Aero-engine, School of Jet Propulsion Beijing University of Aeronautics and Astr State Key Laboratory for Turbulence and Complex System, Peking University Engineering Research Insti
国际会议
昆明
英文
400-407
2006-09-18（万方平台首次上网日期，不代表论文的发表时间）