混流式水轮机三维非定常湍流计算  

Simalation study on three-dimensional unsteady turbulent flow simulation through Francis turbine

作　　者：刘宇[1] 杨建明[2] 戴江[3] 吴玉林[1] 

机构地区：[1]清华大学热能工程系,北京100084 [2]湖北清江水电开发有限责任公司,宜昌443000 [3]中国长江三峡开发总公司,宜昌443000

出　　处：《水力发电学报》2004年第4期102-105,共4页Journal of Hydroelectric Engineering

摘　　要：本文完成了混流式模型水轮机全流道的三维非定常湍流计算。以N S方程为基础 ,补充以湍流模型并通过有限体积对控制方程进行离散 ;数值求解采用SIMPLEC算法 ;分别对标准k ε湍流模型和重整化群 (RNG)kNumerical calculation of 3 D unsteady turbulent flow through the whole flow passage of a Francis turbine model is accomplished by solving the N S equations.Based on turbulent flow model,the control equation is discretized by finite volume method and SIMPLEC method is applied to solve the equations.The result attained by using standard k ε turbulent flow model and the result attained by using Renormalization Group(RNG) k ε turbulent flow model have been compared.

关 键 词：动力机械工程 稳定性能预估 三维湍流计算 混流式水轮机 非稳定流 

分 类 号：TK730.2[交通运输工程—轮机工程]