Study on the Control of Cavitation of Axial Flow Pump With Discontinuous Bulges on the Back of Blades

	Study on the Control of Cavitation of Axial Flow Pump With Discontinuous Bulges on the Back of Blades
	Zhao, Wei-Guo1,2 ; Zhao, Fu-Rong 1,2; Lu, Jia-Jia 1,2
	2021
发表期刊	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
ISSN	0253231X
卷号	42 期号:1 页码:96-105
摘要	In order to control the occurrence and development of axial pump cavitation, a scheme for arranging discontinuous bulges structures on the back of axial flow pump blades was proposed. Based on ANSYS CFX software, the numerical simulation of the 350ZQ-125-30 submersible axial flow pump was carried out to compare and analyze the changes of pressure, turbulent kinetic energy, cavitation and streamline distribution between the improved model and the original model. The results show that the low pressure area on the back of the blade is reduced, the high pressure area of the working face is increases obviously, and the critical cavitation margin decreases. The cavity volume fraction decreases in all stages of cavitation, especially in the initial stage of cavitation, which decreases by 38.3% compared with the original model, effectively controlled the occurrence of cavitation and the cavitation performance. At the stage of cavitation development, the existence of the bulge can effectively block the impact of the re-jet, control the drop of the cavity, and restrain the generation of tip vortex cavitation in the impeller channel. © 2021, Science Press. All right reserved.
关键词	Axial flow Computer software Kinetic energy Kinetics Pumps Turbulent flow Cavitation performance Compare and analyze High pressure area Impeller channels Low-pressure area Streamline distributions Tip vortex cavitations Turbulent kinetic energy
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20210509870862
EI主题词	Cavitation
EI分类号	618.2 Pumps - 631.1 Fluid Flow, General - 631.1.1 Liquid Dynamics - 723 Computer Software, Data Handling and Applications
来源库	Compendex
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/147255
专题	能源与动力工程学院
作者单位	1.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Fluid Machinery and System, Lanzhou; 730050, China
第一作者单位	能源与动力工程学院
第一作者的第一单位	能源与动力工程学院
推荐引用方式 GB/T 7714	Zhao, Wei-Guo,Zhao, Fu-Rong,Lu, Jia-Jia. Study on the Control of Cavitation of Axial Flow Pump With Discontinuous Bulges on the Back of Blades[J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,2021,42(1):96-105.
APA	Zhao, Wei-Guo,Zhao, Fu-Rong,&Lu, Jia-Jia.(2021).Study on the Control of Cavitation of Axial Flow Pump With Discontinuous Bulges on the Back of Blades.Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,42(1),96-105.
MLA	Zhao, Wei-Guo,et al."Study on the Control of Cavitation of Axial Flow Pump With Discontinuous Bulges on the Back of Blades".Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics 42.1(2021):96-105.