Unsteady Flow in a Viscous Oil Transporting Centrifugal Pump

doi:10.2478/s13531-011-0013-x

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	Unsteady Flow in a Viscous Oil Transporting Centrifugal Pump
	Li, Wen-Guang
刊名	OPEN ENGINEERING
	2011-12-01
卷号	1 期号:4 页码:361-368
关键词	Centrifugal pump Impeller Volute Performance Unsteady flow Fluctuation of flow Viscosity CFD
ISSN号	2391-5439
DOI	10.2478/s13531-011-0013-x
英文摘要	Acoustic resonances are frequently fatal problems in centrifugal pump operations. Low pressure pulsation of fluid in the blade pass frequency is helpful to prevent from such problems. In addition, for a high quality centrifugal pump, a lower broadband noise level is also on demand. The acoustic resonance and broadband noise are associated with unsteadiness of flow in the pump. Even there exist extensive analyses of unsteady flow in centrifugal pumps by means of CFD so far, the effect of high viscosity of fluid pumped on the unsteadiness of flow feature remains unclear. Thus, the unsteady flow in an experimental centrifugal pump was exploited numerically when it transported the liquids with different viscosities. The velocity profiles at the impeller discharge were validated with the results of LDV measurement for water. The viscosity effect on the fluctuation of flow in the volute was clarified quantitatively. It was shown the increasing viscosity of fluid makes the fluctuation in flow variables less substantial and results into a less noticed tendency of separation of flow from the blade pressure side.
WOS研究方向	Engineering
语种	英语
出版者	DE GRUYTER OPEN LTD
WOS记录号	WOS:000218358100004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155721]
专题	兰州理工大学
作者单位	Lanzhou Univ Technol, 287 Langongping Rd, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Wen-Guang. Unsteady Flow in a Viscous Oil Transporting Centrifugal Pump[J]. OPEN ENGINEERING,2011,1(4):361-368.
APA	Li, Wen-Guang.(2011).Unsteady Flow in a Viscous Oil Transporting Centrifugal Pump.OPEN ENGINEERING,1(4),361-368.
MLA	Li, Wen-Guang."Unsteady Flow in a Viscous Oil Transporting Centrifugal Pump".OPEN ENGINEERING 1.4(2011):361-368.