LI T Z, YANG Z P, WEN X P.Numerical simulation of mixing effect and flow field of internal vane of jet pump with different inclination angles[J].Journal of Henan Polytechnic University(Natural Science) ,2022,41(6):123-129.

doi:10.16186/j.cnki.1673-9787.2021080048

Received:2021/08/13

Revised:2021/10/03

Published:2022/11/25

Numerical simulation of mixing effect and flow field of internal vane of 

jet pump with different inclination angles

LI Tongzhuo, YANG Zhipeng, WEN Xiaoping

School of Mechanical and Power Engineering， Henan Polytechnic University， Jiaozuo 454000， Henan， China

Abstract:In order to improve the mixing efficiency of the internal fluid in the jet pump，a fan-shaped vane was built in the internal pipe of the jet pump for the first time.Based on the k-ε  turbulence model，the software Fluent was used to simulate and analyze the influence of the vane angle on the internal flow field and fluid mixing effect of the jet pump.The results showed that the mixing degree of the jet pump was improved with the built-in vanes，and the maximum non-uniformity coefficient at the outlet could be reduced from 0.218 7 to 0.105 4.The performance of different sizes of vanes varied greatly under the same inclination angle.In the small structure vanes，the mixing degree was less affected with large inclination angle.In the case of large structure vanes，small inclination angle could destroy the core jet easily and make it drop to neutral，which led to the reduction of mixing degree.The results provided a theoretical basis for optimizing the design of jet pump and enhancing the mixing effect.

Key words:jet pump;numerical simulation;blade angle;internal flow field;mixed effect

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