摘要
随着计算机技术及计算流体动力学的进步,三维粘性流动数值模拟逐步被应用于水轮机的设计和优化。本文在雷诺时均N-S方程基础上,采用有限体积法和标准k-ε紊流模型,计算了混流式模型水轮机多部件、动静耦合的三维粘性流动,并利用数值计算结果预测了模型水轮机的水力效率,预测的水轮机等效率曲线与模型试验结果相吻合。
The efficiency hill chart of a complete turbine is predicted by Navier-Stokes flow analysis. The numerical simulation of a complete Francis turbine including rotor-stator interaction is based on the Reynolds-averaged NavierStokes equations with the standard k-ε turbulence model. The governing equations are discretizated with nonstaggered grid by means of the finite volume method. Calculated efficiency hill chart and the measured results are compared
出处
《水力发电学报》
EI
CSCD
北大核心
2005年第6期100-103,共4页
Journal of Hydroelectric Engineering
关键词
动力机械工程
效率曲线预测
三维紊流计算
混流式水轮机
耦合计算
动静干涉
power machinery engineering
efficiency hill chart prediction
three-dimensional turbulent flow simulation
Francis turbine
coupled simulation
rotor-stator interaction
作者简介
肖惠民,1973年生,男,博士,讲师
