大流量涡流二极管内流仿真及高阻特性研究  

A STUDY ON THE SIMULATION OF THE INTERNAL FLOW IN VORTEX DIODE PUMP AND THE HIGH RESISTANCE CHARACTERISTICS

作　　者：王乐勤[1] 孙青军[1] 焦磊[1] 

机构地区：[1]浙江大学化工机械研究所,浙江杭州310027

出　　处：《工程热物理学报》2008年第12期2046-2048,共3页Journal of Engineering Thermophysics

基　　金：浙江省自然科学基金项目资助(No.Y107467)

摘　　要：文中采用雷诺应力模型(RSM)对涡流二极管泵内部流场进行三维数值模拟,阐述涡流二极管内部流场及高阻产生机理,将内部流动近似为Rankine涡并进行验证,分析了切向入口压力变化对流动特性的影响,结果表明:入口操作压力超过一特定限度后中心区域将出现较大的回流现象,这将有助于提高涡流二极管性能。The Reynolds Stress Model （RSM） was used to simulate the 3D internal flow of the vortex diode pump, and the flow field was described and the high resistance characteristics were explained. The internal flow was assumed to be like the Rankine vortex which was confirmed by the simulation data. The effect of different tangential pressures on the flow character was described in detail. The results showed that there would be backflow in the center export area when the inlet pressure exceeded a certain point which helped to raise the performance of the vortex diode pump.

关 键 词：涡流二极管 数值模拟 高阻特性 涡流效应 Rankine涡 

分 类 号：TQ051.21[化学工程]