颗粒对偏导射流伺服阀前置级空化影响的研究  

Study on Influence of Particles on Cavitation in Prestage of Deflecting Jet Servo Valve

作　　者：姜宏春 吴凛[1] 陈奎生[1] JIANG Hong-chun;WU Lin;CHEN Kui-sheng(College of Machinery and Automation,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学机械自动化学院,湖北武汉430081

出　　处：《液压气动与密封》2024年第12期13-19,共7页Hydraulics Pneumatics & Seals

基　　金：湖北省自然科学基金青年项目(2021CFB141)。

摘　　要：针对偏导射流伺服阀油液中污染颗粒在高速射流流场中,对其前置级发生空化现象的影响问题,采用欧拉-欧拉方法建立液-气-固混合多相流模型,对前置级装置空化现象进行了系统的数值模拟仿真研究,并总结了空化现象的发生位置及随着偏转板偏移、入口压力、颗粒粒径和含量等因素的变化情况。这些结果对于优化前置级装置设计和减少空化现象具有重要意义。In view of the influence of pollution particles in the oil of deflected jet servo valve on the cavitation phenomenon of its pre-stage in the high-speed jet flow field,a multiphase flow model of liquid-vaping-solid mixture was established by Euler-Euler method,and the cavitation phenomenon of the prestage device was simulated systematically.The location of cavitation phenomenon and its changes with the deviation of deflector plate,inlet pressure,particle size and content were summarized.These results are of great significance for optimizing the design of prestage devices and reducing cavitation phenomena.

关 键 词：偏导射流伺服阀 颗粒 入口压力 空化 数值模拟 

分 类 号：TH137[机械工程—机械制造及自动化]