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赵卫国,王文广,王利英,张凯,曹庆皎.基于CFD的水泵水轮机压力脉动分析[J].河北工程大学自然版,2021,38(4):94-101
基于CFD的水泵水轮机压力脉动分析
Analysis of Pressure Pulsation of Pump Turbine Based on CFD
投稿时间:2021-07-01  
DOI:10.3969/j.issn.1673-9469.2021.04.014
中文关键词:  水泵水轮机  压力脉动  流场分析  数值模拟
英文关键词:pump turbine  pressure fluctuation  flow field analysis  numerical simulation
基金项目:国家自然科学基金面上项目(12072098,11972144)
作者单位
赵卫国 河北工程大学 水利水电学院, 河北 邯郸 056021 
王文广 河北工程大学 水利水电学院, 河北 邯郸 056021 
王利英 河北工程大学 水利水电学院, 河北 邯郸 056021 
张凯 河北工程大学 水利水电学院, 河北 邯郸 056021 
曹庆皎 河北工程大学 水利水电学院, 河北 邯郸 056021 
摘要点击次数: 54
全文下载次数: 14
中文摘要:
      针对水泵水轮机的压力脉动问题,采用计算流体力学进行了全流道数值分析。在活动导叶以及转轮之间的无叶区沿圆周方向设置61个监测点,并且对水轮机工况以及水泵工况分别采取不同工况进行压力脉动分析,对比分析不同工况的流场与压力脉动之间的联系。结果表明,水轮机工况以及水泵工况无叶区压力在时空尺度上均呈现周期性分布,水轮机工况压力分布主要由转轮叶片所决定,水泵工况压力脉动主要由活动导叶决定。水泵工况压力脉动强于水轮机工况。
英文摘要:
      Aiming at the pressure pulsation of water pump turbines, computational fluid dynamics (CFD) was used to carry out the numerical analysis of the whole flow channel. 61 monitoring points were set up along the circumferential direction in the bladeless area between the movable guide vanes and the runners, and the pressure fluctuations in different working conditions of the hydraulic turbine working conditions and the water pump working conditions was analyzed. The relationship between the flow field and pressure pulsation under different working conditions was analyzed. The results show that the pressure in the bladeless zone of the hydraulic turbine working condition and the pump working condition presents a periodic distribution on the time and space scale. The pressure distribution of the hydraulic turbine working condition is mainly determined by the runner blades, and the pressure pulsation of the pump working condition is mainly determined by the movable guide vanes.The pressure pulsation of the pump working condition is stronger than that of the hydraulic turbine working condition.
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