가이드 베인 각도에 따른 수중축류펌프의 성능특성 연구

초록

This paper investigates hydraulic performance characteristics of a submersible axial-flow pump with different angles of inlet guide vane, both numerically and experimentally. Three-dimensional Reynolds-averaged Navier-Stokes analysis with k–ω Shear stress transport turbulence model is used for the performance analysis. Hexahedral grid is constructed in the entire computational domain, and a grid dependency test is performed to obtain the optimal number of grid nodes. Four different shapes of the inlet guide vane are tested to investigate the effects of inlet guide vane angle on the hydraulic performance of the tested axial-flow pump. It is seen that the hydraulic performances at the design and off-design conditions are considerably affected by the geometric parameters. In order to verify the numerical results, an experimental test is performed. The numerical results show good agreements with the experimental data.

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