自激共振喷嘴与锥形喷嘴空化发生器的空化特性仿真研究  

Simulation Study of Self-resonating and Conical Jet Nozzle Cavitating Generator

作　　者：关善超[1] 胡雪佳[1] 沈壮志[1,2] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062 [2]陕西省物理研究所陕西省超声学重点实验室,陕西西安710062

出　　处：《长江大学学报（自科版）（上旬）》2013年第1期12-14,2,共3页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

基　　金：国家自然科学基金项目(11174191);陕西省自然科学基金项目(2011JM1002);国家大学生创新训练计划项目(CX12131)

摘　　要：运用Fluent软件、k-ε模型、气液两相流空化模型,模拟计算了相同喷嘴直径下的自激共振喷嘴和锥形喷嘴空化发生器的空化特性,得出了自激共振喷嘴在同样条件下出现空化现象所需时间比锥形喷嘴少,空化区域大,湍流动能强的结论,对设计空化发生器有一定的指导作用。Simulation study of self-resonating and the conical cavitating jet nozzle cavitating generator is carried out by using Software Fluent,standard k-ε model and gas-liquid two phase flow mixed cavitations model.Numerical simulation is performed on the cavitation characteristics of the self-resonating and the conical jet nozzle cavitating generator with the same nozzle size.The results show that self-resonating jet nozzle needs less time when cavitation comes and has larger cavitation region,stronger turbulent kinetic energy in the same condition.The study provides a duidance for designing cavitating generator.

关 键 词：自激振动 空化 喷嘴 

分 类 号：O357.1[理学—流体力学]