射流伺服阀前置级颗粒物空间分布数值研究  

The Study of Particle Distribution in Pilot-stage of a Jet Pipe Servo Valve

作　　者：冯怡然 谢志刚[1] 刘莎 彭传龙 曹伟[1] 李奕宁 Feng Yiran;Xie Zhigang;Liu Sha;Peng Chuanlong;Cao Wei;Li Yining(AVIC Xi'an Flight Automatic Control Research Institute,Xi'an,China)

机构地区：[1]航空工业西安飞行自动控制研究所,陕西西安

出　　处：《科学技术创新》2023年第21期51-55,共5页Scientific and Technological Innovation

摘　　要：为了研究油液中所携带的颗粒物在伺服阀前置级中的停留率和停留位置,本研究通过数值模拟研究了在不同工作状态下,不同尺寸的固体颗粒在射流伺服阀前置级流场中的速度空间分布。结果表明:(1)颗粒会在伺服阀前置级中展现出倾向性的聚集行为,且长时间驻留在伺服阀内,特别是接收口及以下区域;(2)控制腔C1、C2端面边界条件为正弦流率相比其为固定壁面时,颗粒相的停留率更低;(3)控制腔端面C1、C2边界条件为正弦流率时,伺服阀前置级内颗粒停留率展现出随时间延长而降低的趋势。In order to study the residence rate and residence position of particle in the pre-stage of jet pipe servo valve,the two-phase flow of the pre-stage of jet pipe servo valve at two different working conditions has been studied in this paper.The results shows that:(1)Particles tend to accumulate in the pare-stage for a long time,especially below the receiver;(2)The retention rate of particles is higher when the boundary condition of C1 and C2 is sinusoidal flow than when it is fixed wall;(3)When the boundary condition of C1 and C2 is sinusoidal flow,the retention rate shows a decrease with the increase of calculation time.

关 键 词：射流伺服阀 数值模拟 流固耦合 颗粒行为学 

分 类 号：TH137[机械工程—机械制造及自动化]