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Position: Home > Articles > Flow Analysis of the Pump-turbine Runner in the Pump Mode Transactions of the Chinese Society for Agricultural Machinery 2008,39 (4) 75-78+88

水泵水轮机泵工况转轮流场分析

作  者:
张兰金;纪兴英;常近时
单  位:
中国农业大学水利与土木工程学院;哈尔滨电机厂有限责任公司大电机研究所
关键词:
水泵水轮机;转轮;泵工况;流场;数值模拟
摘  要:
基于三维定常N-S方程和标准k-ε湍流模型,采用贴体坐标、结构化网格和基于有限体上的有限元法,对400m水头水泵水轮机模型转轮泵工况进行内部流场模拟,通过转轮内部有限体上的速度、压力积分求解转轮扬程、净正吸出高度和效率,从而预测转轮泵工况的能量、扬程及空化性能,并对转轮的内部流速分布、涡分布和叶片压力分布进行了分析研究。
译  名:
Flow Analysis of the Pump-turbine Runner in the Pump Mode
作  者:
Zhang Lanjin1 Ji Xingying2 Chang Jinshi1(1.China Agricultural University 2.Harbin Electric Machinery Company Limited)
关键词:
Pump-turbine,Runner,Pump mode,Flow field,Numerical simulation
摘  要:
Based on 3-D-steady Navier-Stokes equations with the standard k-ε turbulence closure models,the structure mesh with fitted body coordinate and the finite element based finite volume method,the 400 meters head pump-turbine runner inner flow was simulated in the pump mode.The head,efficiency and net positive suction head of the pump-turbine have been calculated through integrating the velocity and pressure of the finite volume in the runner.The velocity,vorticity and the blade pressure distribution rules were all discussed.The meridional velocity near the leading edge of the blade had the "S" shape along the radius,and that near the trailing edge of the blade had the "M" shape along the radius.The vorticity mainly appeared on the blade,crown and band of the runner.

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