摘要
基于Fluent数值模拟方法,对3种流量、8种淹没深度工况下的泵站进水口漩涡水力特性进行模拟研究。结果表明,泵站进水口最大涡量值出现在流道顶板附近区域;随着淹没深度的增加,最大涡量值呈先增大后减小的变化特征,当淹没深度为0.5 m时,涡量值最大;当淹没深度设置为0.9 m时,泵站进水口的水力特性最佳。研究结果可为减小水泵振动、提高机组效率和安全性提供借鉴。
Based on fluent numerical simulation method,the hydraulic characteristics of vortex at the inlet of pump station under the conditions of 3 flows and 8 inundation depths are simulated.The results show that the maximum vorticity at the inlet of the pump station appears near the top plate of the flow channel;with the increase of inundation depth,the maximum vorticity value increases first and then decreases.When the inundation depth is 0.5m,the vorticity value is the largest;when the submergence depth is set to 0.9m,the hydraulic characteristics of the pump station inlet are the best.The research results can provide reference for reducing pump vibration and improving unit efficiency and safety.
作者
张忠孝
ZHANG Zhong-xiao(Donggang City Water Conservancy Affairs Service Center,Dongguang 118300,Liaoning,China)
出处
《水利科技与经济》
2022年第4期41-44,49,共5页
Water Conservancy Science and Technology and Economy
关键词
FLUENT
流量
淹没深度
涡量
水力特性
Fluent
flow
submergence depth
vorticity
hydraulic characteristics
作者简介
张忠孝(1978-),男,辽宁东港人,高级工程师,从事沿海防潮堤防护、中小型水库管理及中小河道治理工作.
