入口压力对转套式配流系统空化的影响  

Influence of Inlet Pressure on Cavitation of Rotary Sleeve Distribution System

作　　者：刘瑞璟[1] 张铁柱[1] 张洪信[2] 赵清海[1] 杜善霄 LIU Rui-jing;ZHANG Tie-zhu;ZHANG Hong-xin;ZHAO Qing-hai;DU Shan-xiao(Power Integration and Energy Storage Systems Engineering Technology Center, Qingdao University, Qingdao, Shandong 266071;School of Electromechanical Engineering, Qingdao University, Qingdao, Shandong 266071)

机构地区：[1]青岛大学动力集成及储能系统工程技术中心,山东青岛266071 [2]青岛大学机电工程学院,山东青岛266071

出　　处：《液压与气动》2020年第9期29-34,共6页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51575286)。

摘　　要：入口压力的变化会改变转套式配流系统内部流场的压力分布,影响系统内部空化特性。利用流场分析软件Fluent对转套式配流系统的流体域进行仿真计算,设置不同的入口压力,考察空化相关参数随入口压力变化的规律,提出开发适配转套式配流系统的新空化模型将是未来研究工作的重点,并应用YST380W型液压综合试验台对仿真结果进行试验验证。结果表明,入口压力的提高能有效降低转套式配流系统的空化程度,减小最大气体体积分数和空化占比,提高容积效率。In the Rotary Sleeve Distribution System(RSDS),the change of inlet pressure will alter the pressure distribution in the internal flow field,and influence the cavitation phenomenon in RSDS.Flow field analysis software Fluent is used to simulate the fluid domain of RSDS,and the laws of cavitation related parameters changing with the inlet pressure are obtained by setting different inlet pressure.The development of new cavitation model for RSDS will be the focus of future research.The simulation results are verified by the YST380W hydraulic comprehensive test bench.The results show that the increase of inlet pressure could effectively reduce cavitation,maximum gas volume fraction and cavitation time ratio,and improve volume efficiency.

关 键 词：入口压力 空化 流场分析 试验验证 转套式配流系统 

分 类 号：TH137.51[机械工程—机械制造及自动化]