涡街发生体是涡街流量计的关键部件之一,其流体力学外形决定了涡街流量计的量程、精度。设计了一种新型的涡街发生体,并通过CFD软件FLUENT对新型涡街发生体和目前常用的涡街发生体进行数值仿真、理论分析和比较。结果表明:在实际应用中,新型涡街发生体的流体力学性能优于其他涡街发生体,适合高、低流速下产生强度大且稳定的涡街。Vortex generator is an important component of vortex flowmeter.The shape of CFD decides vortex flowmeter's range and accuracy.A novel vortex generator is disigned,its numerical value is simulated and the theory is analysed by FLUENT,and the other common generators are compared with it.As a result,through practical application,the advanced vortex generator has a better performance than others,it is able to make powerful and steady vortexes in low or high Renault value.福建省重大专项前期研究计划资助项目(2005HZ1022
