叶轮机械中的泄漏流与泄漏涡  

LEAKAGE FLOW AND LEAKAGE VORTEX IN TURBOMACHINERY

作　　者：贾希诚[1] 王正明[1] 王嘉炜[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《工程热物理学报》2003年第5期753-756,共4页Journal of Engineering Thermophysics

基　　金：国家重点基础研究项目资助(No.G1999022309);国家自然科学基金(No.59976046)

摘　　要：本文基于非正交曲线坐标及非正交速度分量下完全守恒型的N-S方程,采用整体H型网格,用数值方法研究叶轮机械中的泄漏流动。对于不同的间隙尺寸,对于环壁静止与旋转的不同壁面条件,揭示了泄漏流与通道二次涡相互作用的细节,揭示了泄漏涡的生成与发展过程。Based on the N-S equations in full conservative form expressed with nonorthogonal curvilinear coordinates and corresponding nonorthogonal velocity components, the leakage flow in turbo-machinery was investigated by numerical method using an efficient integral H-grid. The details of the interaction between leakage flow and passage secondary flow and the details of generation and development of leakage vortex were predicted under different clearance scale and the condition of both stationary and rotating hub.

关 键 词：叶轮机械 泄漏流 泄漏涡 

分 类 号：TK474[动力工程及工程热物理—动力机械及工程]