Effect of axial matching between inducer and centrifugal pump suction chamber on cavitation performance

doi:10.1177/0957650919889506

	Effect of axial matching between inducer and centrifugal pump suction chamber on cavitation performance
	Cheng, Xiaorui 1,2; Zhang, Aimin 2
刊名	PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
	2019-11-25
卷号	234 期号:7 页码:947-956
关键词	Inducer suction chamber axial matching cavitation performance
ISSN号	0957-6509
DOI	10.1177/0957650919889506
英文摘要	According to the design requirements of a booster centrifugal pump, the full three-dimensional numerical calculation of the model pump is carried out based on the RNG k-e turbulence model and the Rayleigh-Plesset cavitation model to analyze the influence of the axial matching of the inducer and the suction chamber (i.e. the degree of the axial extension of the inducer into the suction chamber) on the cavitation performance of the centrifugal pump. Five sets of centrifugal pump design schemes were selected respectively with the ratio of the axial direction of the inducer into the suction chamber and the axial distance of the inducer hub were 0 (original scheme), 1.6%, 3.2%, 4.8%, and 6.4% to compare the distribution of axial static pressure of the inducer and the suction chamber, the variation of cavitation characteristics, head (energy of a fluid per unit weight obtained by working with a pump expressed in the form of height) and efficiency of the centrifugal pump, the distribution of bubbles in the inducer and the impeller, and the static pressure distribution law of the inducer in the runner. According to the results, what are illustrated are that the cavitation performance of the centrifugal pump can be improved by inserting the inducer into the suction chamber to a certain extent, and the cavitation performance is better with the increase of the axial indentation degree, but it tends to be stable after reaching a certain degree. At the same time, it was found that the vapor bubbles in the inducer and the impeller first appeared in the low pressure region at the inlet rim of the blade.
资助项目	Chinese National Natural Science Foundation[51469013]
WOS研究方向	Thermodynamics ; Engineering
语种	英语
出版者	SAGE PUBLICATIONS LTD
WOS记录号	WOS:000499527500001
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64165]
专题	能源与动力工程学院
通讯作者	Cheng, Xiaorui
作者单位	1.Key Lab Fluid Machinery & Syst, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ Technol, Coll Energy & Power Engn, 287 Langongping Rd, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Xiaorui,Zhang, Aimin. Effect of axial matching between inducer and centrifugal pump suction chamber on cavitation performance[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,2019,234(7):947-956.
APA	Cheng, Xiaorui,&Zhang, Aimin.(2019).Effect of axial matching between inducer and centrifugal pump suction chamber on cavitation performance.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,234(7),947-956.
MLA	Cheng, Xiaorui,et al."Effect of axial matching between inducer and centrifugal pump suction chamber on cavitation performance".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY 234.7(2019):947-956.