Effects of Axial Clearance on Hydraulic Characteristics of Counter-Rotating Water-Jet Pump

doi:10.13675/j.cnki.tjjs.180713

	Effects of Axial Clearance on Hydraulic Characteristics of Counter-Rotating Water-Jet Pump
	Han, Wei 1,2; Xu, Dan-Dan 1; Guo, Wei 1; Su, Min 3; Chen, Yu 1; Han, Yang 1
刊名	Tuijin Jishu/Journal of Propulsion Technology
	2019-09-01
卷号	40 期号:9 页码:2144-2152
关键词	Buoyancy Impellers Jet pumps Numerical methods Numerical models Turbulence models Axial clearance Contra-rotating axial External characteristic Internal flows Water jet propulsions
ISSN号	10014055
DOI	10.13675/j.cnki.tjjs.180713
英文摘要	The axial clearance coefficient δ between first and secondary stage impeller is defined to investigate the effects of axial clearance on hydraulic performance and thrust characteristic of the contra-rotating water-jet pump. Refering to the range of axial clearance between guide vane and impeller, 5 water-jet pump models with different axial clearance coefficient were designed. Based on the RNG k-Ε turbulence model and SIMPLEC algorithm, the numerical simulation of five groups water-jet pump models with different clearance coefficient were carried out. The pump external characteristics, internal flow characteristics and thrust characteristics are analyzed with different axial clearance coefficients. Numerical results agree well with the experience results, which verify the effectiveness of numerical simulation method. With the increase of δ within the scope of the study, the low pressure area of the front impeller can be improved effectively. The energy from the front impeller is difficult to be absorbed by the rear impeller with 0.13 © 2019, Editorial Department of Journal of Propulsion Technology. All right reserved.
语种	中文
出版者	Journal of Propulsion Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114207]
专题	能源与动力工程学院电气工程与信息工程学院
作者单位	1.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Gansu Fluid Machinery and System, Lanzhou; 730050, China; 3.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Han, Wei,Xu, Dan-Dan,Guo, Wei,et al. Effects of Axial Clearance on Hydraulic Characteristics of Counter-Rotating Water-Jet Pump[J]. Tuijin Jishu/Journal of Propulsion Technology,2019,40(9):2144-2152.
APA	Han, Wei,Xu, Dan-Dan,Guo, Wei,Su, Min,Chen, Yu,&Han, Yang.(2019).Effects of Axial Clearance on Hydraulic Characteristics of Counter-Rotating Water-Jet Pump.Tuijin Jishu/Journal of Propulsion Technology,40(9),2144-2152.
MLA	Han, Wei,et al."Effects of Axial Clearance on Hydraulic Characteristics of Counter-Rotating Water-Jet Pump".Tuijin Jishu/Journal of Propulsion Technology 40.9(2019):2144-2152.