CFD Analysis of Impeller Internal Flow Field in Multistage Pump with Inducer

Abstract:

Based on the three-dimensional Reynolds-Averaged N-S equations and the standard k-ε turbulence model, the inner flow of a multistage vane water centrifugal pump was simulated. The distribution law of inner flow was analyzed by using the SIMPLEC algorithm and multiple reference frame (MRF) model provided by CFD software Fluent. The pressure and velocity distribution law in impeller and vane diffuser are obtained. Results indicated that the lowest pressure area , where cavitation was easy to occur, was in the inlet of the first impeller blade back. There is reverse flow in outlet of impeller. An area of low pressure can be seen in the inlet of return guide vanes. The guide vane could reduce fluid velocity and eliminated fluid rotating component.

• Periodical: Advanced Materials Research (Volumes 1070-1072)
• Pages: 1937-1940
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1070-1072.1937
• Online since: December 2014
• Authors: Ling Zhang, Peng Jie Huang, Hai Qiang Li, Yun Peng Diao
• Keywords: Multistage Pump, Numerical Simulation, Performance Prediction, Secondary Flow

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