Modeling of the Double Leakage and Leakage Spillage Flows in Axial Flow Compressors

作     者：DU Hui YU Xianjun LIU Baojie 

作者机构：National Key Laboratory of Science & Technology on Aero-Engine Aero-ThermodynamicsSchool of Energy and Power EngineeringBeihang University 

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：103-113页

核心收录：

学科分类：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] 

基　　金：funded by the National Natural Science Foundation of China Grant No.51006007 51136003 and 50976009 

主　　题：tip leakage vortex double leakage leading edge spillage flow modeling axial compressor turbo-machinery 

摘      要：A model to predict the double leakage and tip leakage leading edge spillage flows was developed. This model was combined by a TLV trajectory model and a TLV diameter model and formed as a function of compressor one-dimensional design parameters, i.e. the compressor massflow coefficient, Ф and compressor loading coeffi- cient, ψ, and some critical blade geometrical parameters, i.e. blade solidity, a, stagger angle, βs, blade chord length, C, and blade pitch length, S. By using this model, the double leakage and tip leakage leading edge spillage flow could be predicted even at the compressor preliminary design process. Considering the leading edge spillage flow usually indicates the inception of spike-type stall, i.e. the compressor is a tip critical design, this model could also be used as a tool to choose the critical design parameters for designers. At last, some experimental data from literature was used to validate the model and the results proved that the model was reliable.