上翻式和侧翻式拍门水力特性对比研究

为了分析拍门的水力特性, 以上翻式和侧翻式拍门为研究对象, 应用Pro / E 软件进行三维建模, 应用Fluent 软件对拍门开启角度为30b、40b及50b的出水流态进行数值模拟, 得到了两种拍门的水力损失值。研究结果表明, 侧 翻式拍门克服了传统上翻式拍门的缺陷, 拍门开启角度大, 在同种工况下侧翻式拍门的水力损失更小, 水流流态更好。 In or der to ana lyze the hydraulic characterist ics of flap valve, t he upturning and side2dump flap valves w ere used as the research object, the three2dimensional mo del of fla p va lve w as developed using Pro / E softw are and the numerica l simulat ion of outlet flow patter n w as conducted using Fluent softw are under three opening ang les of flap valv e: 30b, 40b , and 50b. T he hydrau2 lic lo sses of t he tw o flap v alv es w ere o btained. T he r esear ch r esults pr ov ed that the side2dump flap v alve over comes the disad2 v antag es of tr adit ional upturning flap v alv e in that it has a bigg er opening angel, low er hydraulic lo ss, and bet ter flow patter n under the same w or king conditions. 2013 年湖南省研究生科研创新项目( CX2013B374)