A Similitude Method and the Corresponding Blade Design of a Low-Speed Large-Scale Axial Compressor Rotor

作     者：YU Chenghai MA Ning WANG Kai DU Juan Van den Braembussche R.A. LIN Feng 

作者机构：Key Laboratory of Advanced Energy and PowerInstitute of Engineering ThermophysicsChinese Academy of Sciences Graduate School of Chinese Academy of Sciences von Karman Institute for Fluid DynamicsTurbomachinery and Propulsion DepartmentWaterloose steenweg721640 Sint-Genesius-RodeBelgium 

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

年 卷 期：2014年第23卷第2期

页      面：145-152页

核心收录：

学科分类：080703[工学-动力机械及工程] 080704[工学-流体机械及工程] 08[工学] 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）] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(No.51206164,No.51106153,No.51236001) Chinese Academy of Sciences Visiting Professorship for Senior International Scientists Grant No.2001T2G01 

主　　题：Similitude method Low-speed model Tip clearance flow TLF/MF interface 

摘      要：A similitude method to model the tip clearance flow in a high-speed compressor with a low-speed model is presented in this *** first step of this method is the derivation of similarity criteria for tip clearance flow,on the basis of an inviscid model of tip clearance *** aerodynamic parameters needed for the model design are then obtained from a numerical simulation of the target high-speed compressor *** to the aerodynamic and geometric parameters of the target compressor rotor,a large-scale low-speed rotor blade is designed with an inverse blade design *** order to validate the similitude method,the features of tip clearance flow in the low-speed model compressor are compared with the ones in the high-speed compressor at both design and small flow rate *** is found that not only the trajectory of the tip leakage vortex but also the interface between the tip leakage flow and the incoming main flow in the high-speed compressor match well with that of its low speed *** results validate the effectiveness of the similitude method for the tip clearance flow proposed in this paper.