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- W4387308982 abstract "AbstractThe objectives of this paper are to pursue an accurate numerical method of unsteady cavitating flow at a reasonable calculation cost and investigate the unsteady cavitating flow characteristics of a centrifugal pump. Firstly, the cavitating flow simulations of a centrifugal pump were performed using the partially-averaged Navier–Stokes (PANS) turbulence model and its improved model to evaluate the numerical methods based on experimental data. Compared with the experimental results, the improved PANS turbulence model can better predict the cavitating flows in the pump and has better applicability. Further, the unsteady cavitating flow characteristics of the centrifugal pump, such as the vapour volume fraction, the cavitation-vortex dynamics and the pressure and head fluctuations, were simulated by improved PANS model and discussed. The liquid flow vortex at the end of the cavitation in the impeller is an important reason for the periodic change of the cavitation shape. The periodic change of cavity volume has a certain impact on the pressure pulsation in the impeller and the pump head.Keywords: Cavitating flowcavitation modelcentrifugal pumpturbulence modelvortex Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the National Natural Science Foundation of China [grant number 51979126]." @default.
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- W4387308982 date "2023-10-03" @default.
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- W4387308982 title "Numerical investigation of cavitating flow in centrifugal pump with improved partially-averaged Navier–Stokes method" @default.
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- W4387308982 doi "https://doi.org/10.1080/00221686.2023.2236981" @default.
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