1中国矿业大学 机电工程学院，江苏 徐州221116
2浙江大学流体动力与机电系统国家重点实验室，浙江 杭州310027
3 University of Twente, Faculty of Science and Technology, Physics of Fluids Group,PO Box 217, 7500 AE Enschede, The Netherlands
Simulation and Analysis on Cavitation Property in Throttle Valve based on Fluent
LIU Xiu-mei1,2, LI Bei-bei1, HE Jie1, LONG Zheng1, LI Wen-hua1, LI WEI1
1.School of Mechanical and Electrical Engineering, China University of Mining and Technology,
Xuzhou, Jiangsu, 221116, China
2.The state key laboratory of fluid power transmission and control, Zhejiang university, Zhejiang, Jiangsu, 310027
China
3 University of Twente, Faculty of Science and Technology, Physics of Fluids Group,PO Box 217, 7500 AE Enschede, The Netherlands
Based on computational fluid dynamics, characteristics of cavitation flows in throttle valve with different openings and pressures were studied. The influences of opening on flow pressure, velocity and cavitation regional were also investigated. The numerical results show that: the maximum pressure was located upstream of the channel flow channel, and the minimum pressure was located downstream of the channel flow channel. The pressure gradient for oil flowing increased with decreasing opening; the low-velocity of oil in the valve distributed in the top of valve rod, the corner of the channel, and the corner of the valve seat. With decreasing opening, the velocity of the oil passing through the port increased firstly and then decreased under the contribution of cross-sectional area and oil viscosity; there were three recirculation zone in the top of valve rod, the corner of the channel and the corner of the valve seat, they all decreased with decreasing valve opening; cavitation erosion began near the valve seat, and cavitation erosion in the downstream was caused by uncombined bubble clusters. In addition, with decreasing valve opening, both the cavitation intensity and cavitation region increased at the beginning and then decreased later.
李贝贝1，刘秀梅1,2，3，龙正1，贺杰1，李文华1. 基于Fluent的节流阀油液空化流场数值分析[J]. 振动与冲击, 2015, 34(21): 54-58.
LIU Xiu-mei1,2, LI Bei-bei1, HE Jie1, LONG Zheng1, LI Wen-hua1, LI WEI1. Simulation and Analysis on Cavitation Property in Throttle Valve based on Fluent. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(21): 54-58.
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