起重运输机械Issue(22)：49-56,8.
平面阀门启门初期与闭门末期数值水动力及负载特性模拟研究
摘要
Abstract
By using the standard k-ε model combined with dynamic grid technology and one-way fluid-solid coupling method,the hydrodynamic and load characteristics of the valve at the initial stage of opening and the final stage of closing are numerically simulated.In addition,the feasibility of numerical simulation is verified by comparing the simulation results with the physical scale test results.The results show that the change of valve velocity curve has little influence on the downstream force of 0～4 s and the vertical force of 15～20 s,but mainly affects the downstream force of 4～9 s and the vertical force of 2.5～8.5 s.At the end of closing the door,the change of valve velocity curve has little influence on the force in the downstream direction,but mainly affects the force in the vertical direction,in which the force in the vertical direction decreases by about 44%under working condition 6.Compared with the normal working condition,the maximum door opening force of the valve is reduced under four different working conditions in the initial stage of door opening,and the maximum door opening force of working condition 1 is reduced in 0～14 s.Controlling the acceleration of the valve from small to large at the end of closing can obviously reduce the closing force.关键词
平面阀门/水动力特性/负载特性/启闭力/模拟Key words
plane valve/hydrodynamic characteristic/load characteristic/opening and closing force/simulation分类
建筑与水利引用本文复制引用
陈云,苏华,胡楷雄,何俊辉,闫强..平面阀门启门初期与闭门末期数值水动力及负载特性模拟研究[J].起重运输机械,2024,(22):49-56,8.基金项目
广西科技重大专项(桂科AA23023034) （桂科AA23023034）
