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  • 标题:Centrifugal pump performance drop due to leading edge cavitation
  • 本地全文:下载
  • 作者:X J Li ; Z Y Pan ; D Q Zhang
  • 期刊名称:IOP Conference Series: Earth and Environmental Science
  • 印刷版ISSN:1755-1307
  • 电子版ISSN:1755-1315
  • 出版年度:2012
  • 卷号:15
  • 期号:3
  • DOI:10.1088/1755-1315/15/3/032058
  • 出版社:IOP Publishing
  • 摘要:This paper deals with the leading edge cavitation of the impeller of a single stage centrifugal pump. A centrifugal pump with and without inducer is investigated by numerical simulation. The simulation results of the pump with inducer were compared with experimental data under cavitating and non-cavitating situation. An acceptable agreement has been obtained for the overall performance. Cavitation phenomena are found in varied area near the impeller inlet at the condition in the impeller flow passage and induce unexpected head drop and blade load for the pump without inducer. Violent excitement of cavitation appears at conditions of low partial flow rate and low inlet pressure. As to that with inducer, through obvious cavitation occurs in the inducer passage, no violent cavitation is found in the impeller passage. The overall performance curves are also different between the two conditions.
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