摘要
本文针对白鹤滩电站1000MW模型混流式水轮机,在8.47mm小开度、58.8r/min单位转速下的计算工况点进行非定常数值模拟。通过提取和分析各个过流部件内部空间测点的压力脉动信号,得到了混流式水轮机内部压力脉动的分布特点和传播变化觃律。
This paper is focused on pressure fluctuation in 1000 MW model Francis Turbine. Under 8.47 mm guide vane opening, the unsteady numerical simulation is carried out in following twounit-speed： 58.8 r/min. We study the pressure fluctuation in the different areas of Francis Turbine, and the propagation law along the flow direction as well. How much the rotational speed of runner will influence frequency as well as amplitude of pressure fluctuation is showed in this paper.
作者
赖炳曦
崔秋雯
韩磊
宫汝志
王茜芸
LAI Bingxi;CUI Qiuwen;HAN Lei;GONG Ruzhi;WANG Qianyun(Huizhou Baipenzhu Reservoir Engineering Authority, Huizhou 516341, China;Harbin Institute of Technology, Harbin 150001, China;State Key Laboratory of Hydrpower Equipment （Harbin Institute of Large Electrical Machinery）,Harbinl 50040, China)
出处
《大电机技术》
2018年第3期47-52,共6页
Large Electric Machine and Hydraulic Turbine
关键词
混流式水轮机
压力脉动
数值仿真
Francis turbine
pressure fluctuation
numerical simulation
