Effect of axial matching between inducer and centrifugal pump suction chamber on cavitation performance
Cheng, Xiaorui1,2; Zhang, Aimin1
2019-11-25
Source PublicationPROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
ISSN0957-6509
AbstractAccording 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.
KeywordInducer suction chamber axial matching cavitation performance
DOI10.1177/0957650919889506
Indexed BySCI
Language英语
Funding ProjectChinese National Natural Science Foundation[51469013]
WOS Research AreaThermodynamics ; Engineering
WOS SubjectThermodynamics ; Engineering, Mechanical
WOS IDWOS:000499527500001
PublisherSAGE PUBLICATIONS LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64165
Collection能源与动力工程学院
Corresponding AuthorCheng, Xiaorui
Affiliation1.Lanzhou Univ Technol, Coll Energy & Power Engn, 287 Langongping Rd, Lanzhou, Gansu, Peoples R China
2.Key Lab Fluid Machinery & Syst, Lanzhou, Gansu, Peoples R China
First Author AffilicationColl Energy & Power Engn
Corresponding Author AffilicationColl Energy & Power Engn
First Signature AffilicationColl Energy & Power Engn
Recommended Citation
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.
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.
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 (2019).
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