Numerical Investigation of Influence of Tip Leakage Flow on Secondary Flow in Transonic Centrifugal Compressor at Design Condition

作     者：Masanao Kaneko Hoshio Tsujita 

作者机构：Graduate School of EngineeringHosei University3-7-2Kajino-choKoganei-shiTokyo184-8584Japan Department of Mechanical EngineeringFaculty of Science and EngineeringHosei University 

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

年 卷 期：2015年第24卷第2期

页      码：117-122页

摘      要：In a centrifugal compressor, the leakage flow through the tip clearance generates the tip leakage vortex by the in- teraction with the main flow, and consequently makes the flow in the impeller passage more complex by the inte- raction with the passage vortex. In addition, the tip leakage vortex interacts with the shock wave on the suction surface near the blade tip in the transonic centrifugal compressor impeller. Therefore, the detailed examination for the influence of the tip leakage vortex becomes seriously important to improve the aerodynamic performance cs- pccia｜ly for the transonic centrifugal compressor. In this study, the flows in the transonic centrifugal compressor with and without the tip clearance at the design condition were analyzed numerically by using the commercial CFD code. The computed results revealed that the tip leakage vortex induced by the high loading at the blade tip around the leading edge affected the loss generation by the reduction or the suppression of the shock wave on the suction surface of the blade.

主 题 词：Transonic Centrifugal Compressor Leakage Vortex Secondary Flow Shock Wave Numerical Analysis 

学科分类：080704[080704] 08[工学] 0807[工学-电子信息类] 

核心收录：

D　O　I：10.1007/s11630-015-0763-5

馆 藏 号：203114141...