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- W2370830304 abstract "In order to study the hump of pump performance curve in low specific speed centrifugal pumps,using RANS method algorithm to CFD calculations of internal full flow of low specific speed centrifugal pump in two schemes( has a hump and without the hump) to calculate and analysis. Differences of the internal flow structure are emphatically analyzed in two schemes when hump phenomenon occurs. The results show that the performance curve appeared hump,the flow structure differences of the impeller flow passage near the volute tongue in two programs are the most obvious. Low speed area in the pressure side of the impeller blade in the passage can significantly increase accompanied by vortex flow. The flow of imports also appear obvious vortex flow,losses increased by the impact of the vortex flow. Meanwhile,the jet-wake phenomenon of the channel outlet also mutate,causing exports hydraulic losses increase. Therefore,the increase of these losses is the significant cause of hump phenomenon." @default.
- W2370830304 created "2016-06-24" @default.
- W2370830304 creator A5025593840 @default.
- W2370830304 date "2013-01-01" @default.
- W2370830304 modified "2023-09-27" @default.
- W2370830304 title "CFD Research on Hump Phenomenon of Low Specific Speed Centrifugal Pump" @default.
- W2370830304 hasPublicationYear "2013" @default.
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