Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump

doi:10.1016/j.apm.2015.06.015

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	Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump
	Li, Wen-Guang
刊名	APPLIED MATHEMATICAL MODELLING
	2016-01-15
卷号	40 期号:2 页码:904-926
关键词	Centrifugal pump Pump as turbine Viscosity Reynolds number Correction factor CFD
ISSN号	0307-904X
DOI	10.1016/j.apm.2015.06.015
英文摘要	The performance and flow of a low specific speed experimental centrifugal pump as turbine are identified by means of CFD method when it handles a more viscous liquid than water. The performance curves are compared among five kinds of liquids. Meanwhile the internal variables, such as impeller theoretical head, total hydraulic loss coefficients across the machine, individual total loss coefficient in suction pipe/draft tube, impeller and volute, averaged skin friction factors, pressures coefficients over blade surfaces as well as incidence loss are explored. The correction factors of flow rate, head, hydraulic efficiency and impeller theoretical head in both turbine and pump modes are correlated to impeller Reynolds number by a three-parameter-power function. The flow behaviours in turbine mode are characterized by examining the velocity magnitude and flow angle at the volute outlet, angle of attack, fluid velocity vectors in the volute, swirling patterns of flow in the draft tube and deviation angle at impeller outlet. The results can be useful for pump model selection, performance prediction, hydraulic design and impeller geometry modification. (C) 2015 Elsevier Inc. All rights reserved.
WOS研究方向	Engineering ; Mathematics ; Mechanics
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000367407700016
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33800]
专题	兰州理工大学
通讯作者	Li, Wen-Guang
作者单位	Lanzhou Univ Technol, Dept Fluid Machinery, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Wen-Guang. Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump[J]. APPLIED MATHEMATICAL MODELLING,2016,40(2):904-926.
APA	Li, Wen-Guang.(2016).Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump.APPLIED MATHEMATICAL MODELLING,40(2),904-926.
MLA	Li, Wen-Guang."Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump".APPLIED MATHEMATICAL MODELLING 40.2(2016):904-926.