水轮机弯肘型尾水管内湍流数值计算  

CALCULATION OF TURBULENT FLOW IN A HYDRAULIC TURBINE DRAFT TUBE

作　　者：朱斌[1] 林汝长[1] 

机构地区：[1]中国科学院工程热物理研究所,清华大学水电系

出　　处：《工程热物理学报》1995年第3期317-320,共4页Journal of Engineering Thermophysics

摘　　要：水轮机弯肘型尾水管内湍流数值计算朱斌（中国科学院工程热物理研究所北京１０００８０）林汝长（清华大学水电系北京１０００８４）关键词压力修正法，不可压缩，湍流１前言尾水管是水轮机过流部件之一，其主要作用是将转轮出口的水流动能转化为转轮出口处的附加动力真空...A pressure correction numerical method for three-dimensional incompressible turbulent flow problems of complex geometry has been developed. The present algorithm is based on the finite volume solution in body-fitted coordinates of the Reynolds averaged Navier-Stokes equations closed with the two-equation turbulence model. The simulation method has been applied to a 90° strongly curved square duct and an elbow hydraulic turbine draft tube. The calculated results show an acceptable agreement with the measurements.

关 键 词：压力修正法 湍流 水轮机 尾水管 数值分析 

分 类 号：TK730.314[交通运输工程—轮机工程] O357.5[动力工程及工程热物理—流体机械及工程]