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：2019
卷号：240
期号：3
页码：1-13
DOI：10.1088/1755-1315/240/3/032015
出版社：IOP Publishing
摘要：Two double-entry impellers with inline-vane and staggered-vane arrangements are designed, and then the influence of impeller-vane arrangement on efficiency performance and pressure fluctuations of a double-suction centrifugal pump is investigated. The reliability and accuracy of the numerical method is validated by comparing the experimental and numerical results of pump efficiency performance. The relative error of efficiency at four different flow rates is below 3%. The efficiency performance for different vane arrangements are compared. Eighteen monitoring locations covering important pump regions in impeller and volute are set to obtain the details of pressure fluctuations. The results show that the pressure fluctuations in the volute is greatly reduced for staggered-vane arrangement. The pressure distributions at middle-span plane of the pump show smaller pressure variation for staggered-vane impeller. The overall investigation reveals a weaker rotor-stator interaction for the staggered-vane impeller.
