Dynamic simulation research on cavitation in internal multi-connected volumes of gear pump

doi:10.1109/FPM45753.2019.9035782

CORC > 兰州理工大学 > 兰州理工大学 > 新能源学院

	Dynamic simulation research on cavitation in internal multi-connected volumes of gear pump
	Li, Ming-Xue; Yang, Guo-Lai; Bai, Gui-Xiang
	2019-04-01
会议日期	April 10, 2019 - April 13, 2019
会议地点	Wuhan, China
关键词	Air Cavitation Computation theory Computational fluid dynamics Fluid Power Hydraulic actuators Rotation Speed Coupling relationships Dynamic evolution Fluid dynamics model High speed rotation High-speed operation Simulation research Suction pressures Vapor volume fraction
DOI	10.1109/FPM45753.2019.9035782
页码	757-764
英文摘要	In order to perform fast action of actuator, a large flow rate of hydraulic pump is needed. High speed operation of gear pump becomes one of the most effective ways to reach large flow rate of gear pump in a finite volume. However, high speed rotation can easily result in air is absorbed into gear pump, which exacerbating the cavitation of gear pump. In order to study the dynamic evolution of gas phase during the cavitation in gear pump and analyze the coupling relationship between air and other dynamic behavior, this study established a fluid dynamics model of the multi-connected volumes inside gear pump. Meanwhile, we used the method of computational fluid dynamics and the full cavitation theory to simulate the instantaneous state of cavitation in the multi-connected volumes inside gear pump at different rotation speeds and different suction pressure. The results indicated that: at different rotational speeds and different suction pressures, different degrees of cavitation will occur in internal multi-connected volumes of gear pump; with the increase of rotational speed or the decrease of suction pressure, the maximum vapor volume fraction and cavitation degree of flow filed in gear pump will increase; with the cavitation increasing, the flow state of gear pump becomes more and more unstable, which reduces the continuity and stability of gear pump's outlet flow. © 2019 IEEE.
会议录	Proceedings of the 8th International Conference on Fluid Power and Mechatronics, FPM 2019
会议录出版者	Institute of Electrical and Electronics Engineers Inc., United States
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/117913]
专题	新能源学院能源与动力工程学院兰石研究院（新区研究院）
作者单位	Lanzhou University of Technology, School of Energy and Power Engineering, Lanzhou, China
推荐引用方式 GB/T 7714	Li, Ming-Xue,Yang, Guo-Lai,Bai, Gui-Xiang. Dynamic simulation research on cavitation in internal multi-connected volumes of gear pump[C]. 见:. Wuhan, China. April 10, 2019 - April 13, 2019.