具有粘性效应的离心叶轮内部完全三元流场的数值模拟  

THE CALCULATION CONCERNING VISCIOUS EFFECTS OF FULLY 3D FLOW IN CENTRIFUGAL ROTOR

作　　者：王宁[1] 汪庆桓[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》1997年第5期584-587,共4页Journal of Engineering Thermophysics

基　　金：国家攀登计划(B)项目

摘　　要：This paper is to calculate the fully 3D steady flow in a centrifugal rotor by time marching finite volumn method. The use of a nonoverlapping grid makes resulting process simpler,faster, and more accurate. A distributed body force term added in Euler momeotum equtions calculates low energy fiuid by impirical input data so as to simulate viscious effects in real flow with little extra cost of CPU time. Since the flow condition in centrifugal rotor is complex, a jet-wake model usually forms at the impeller exit, it is necessary to adopt 3D computational technique and viscosity should be considered in numerical simulation to reduce the loss of efficience at design.This paper is to calculate the fully 3D steady flow in a centrifugal rotor by time marching finite volumn method. The use of a nonoverlapping grid makes resulting process simpler,faster, and more accurate. A distributed body force term added in Euler momeotum equtions calculates low energy fiuid by impirical input data so as to simulate viscious effects in real flow with little extra cost of CPU time. Since the flow condition in centrifugal rotor is complex, a jet-wake model usually forms at the impeller exit, it is necessary to adopt 3D computational technique and viscosity should be considered in numerical simulation to reduce the loss of efficience at design.

关 键 词：粘性 离心叶轮 完全三元流场 数值模拟 

分 类 号：TK05[动力工程及工程热物理] TK123