Effects of blade exit angle and liquid viscosity on unsteady flow in centrifugal pumps

doi:10.1177/0957650911433241

CORC > 兰州理工大学 > 兰州理工大学

	Effects of blade exit angle and liquid viscosity on unsteady flow in centrifugal pumps
	Li, W-G
刊名	PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
	2012
卷号	226 期号:A4 页码:580-599
关键词	centrifugal pump impeller volute performance unsteady flow turbulence model viscosity blade exit angle CFD
ISSN号	0957-6509
DOI	10.1177/0957650911433241
英文摘要	Unsteady flows in centrifugal pumps have been extensively studied by means of computational fluid dynamics (CFD) till now. However, effects of viscosity of fluid pumped and blade exit angle on flow steadiness were omitted. Thus, the unsteady flow in an experimental centrifugal pump with two different blade exit angles was explored when the pump handles the liquids with different viscosities by CFD code Fluent to quantitatively clarify the effects in this article. The heads estimated using the unsteady flow model were compared with experiments at two viscosities. The effects of mesh density and turbulence model on the fluid velocity and pressure profiles behind the impeller were clarified. The velocity profiles at the two impellers discharge were validated with the results of laser Doppler velocimetry measurements for water. It was shown that an increasing viscosity of fluid reduces the fluctuation in flow variables at the inlet and outlet to impeller, a larger blade exit angle results in a more remarked fluctuation in the variables.
资助项目	Lanzhou University of Technology[0184]
WOS研究方向	Thermodynamics ; Engineering
语种	英语
出版者	SAGE PUBLICATIONS LTD
WOS记录号	WOS:000305617000011
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36073]
专题	兰州理工大学
通讯作者	Li, W-G
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, W-G. Effects of blade exit angle and liquid viscosity on unsteady flow in centrifugal pumps[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,2012,226(A4):580-599.
APA	Li, W-G.(2012).Effects of blade exit angle and liquid viscosity on unsteady flow in centrifugal pumps.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,226(A4),580-599.
MLA	Li, W-G."Effects of blade exit angle and liquid viscosity on unsteady flow in centrifugal pumps".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY 226.A4(2012):580-599.