摘要
针对某阀门公司提供的DN1000上盖式半球阀,对它的内部三维流场进行数值模拟,分析了8个不同开度下阀门内部流场的变化情况,根据相关公式得出各开度下的流阻系数和流量系数。结果表明:随着阀门开度的增大,阀门的过流能力越强,流量系数越大,流阻系数越小;且开度大于70%时,流量系数迅速增加,而流阻系数基本不变。
The internal three-dimensional flow fields in the DN1000 super-capped hemisphere valve under eight different opening degrees are simulated numerically. The flow resistance coefficient and the flow coefficient under each opening degree are calculated. The results show that with the increase of the opening degree, the flow capacity of the valve becomes stronger, the flow coefficient increases and the flow resistance coefficient decreases. When the opening degree is greater than 70%, the flow coefficient increases rapidly, while the flow resistance coefficient remains basically constant.
作者
廖志芳
王荣辉
谭会攀
唐泽润
应锐
罗爽
蒋劲
LIAO Zhifang;WANG Ronghui;TAN Huipan;TANG Zerun;YING Rui;LUO Suang;JIANG Jin(Tianjin Enterprise Key Laboratory of Water Hammer Valve Control Technology for Water Supply System, Tianjin 300051, China;Bensv Valve Stock Co., Ltd., Tianjin 300051, China;Key Laboratory of Transients in Hydraulic Machinery of Ministry of Education, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)
出处
《水电与新能源》
2019年第5期16-19,共4页
Hydropower and New Energy
关键词
上盖式半球阀
数值模拟
流阻系数
流量系数
super-capped hemispheric valve
numerical simulation
flow resistance coefficient
flow coefficient
