The Effect of Impeller Indent Distance on the Performance of Vortex Pumps

Lei DAI; Lei GU; Jun WANG; Xiang AO; Xiaobo ZHU

doi:10.5293/IJFMS.2020.13.1.042

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자료유형: 학술저널

저자정보: Lei DAI (Hohai University) Lei GU (Hohai University) Jun WANG (Hohai University) Xiang AO (Hohai University) Xiaobo ZHU (Hohai University)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.1

발행연도: 2020.3

수록면: 42 - 54 (13page)

DOI: 10.5293/IJFMS.2020.13.1.042

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Low efficiency is an urgent problem to be solved for vortex pumps due to large number of vortices and backflows. This paper concentrates on the performance improvement of vortex pumps caused by changing the indent distance of the impeller. First, a complete numerical model was established by selecting the optimal length of inlet and outlet and appropriate mesh quantity. Then, the reliability of this model was validated by comparing simulation results with experimental data. Based on this model, the internal flows of vortex pumps with different impeller indent distances were observed in simulations and the fitted curves of head and efficiency were created. Finally, the cause of the performance improvement was demonstrated by analyzing the flow field in vortex pumps.

#Vortex pumps #Indent distance #Numerical method

참고문헌 (12)

참고문헌 신청

Quan, H. / 2016 / Research Stage and Development Tendency of Vortex Pump / Fluid Machinery 44(9):36~40

Kim, S. / 2009 / Design Optimization of Centrifugal Pump Impellers in a Fixed Meridional Geometry using DOE / International Journal of Fluid Machinery and Systems 2(2):172~178

Gusak, A. G. / 2017 / Increase of economy of torque flow pump with high specific speed / 15th International Scientific and Engineering Conference Hermetic Sealing, Vibration Reliability and Ecological Safety of Pump and Compressor Machinery

Sha, Y. / 2010 / Effect of Impeller location and Flow Measurement in Volute of a Vortex Pump / Transactions of The Chinese Society of Agricultural Machinery 41(11):57~62

Krishtop, I. / 2014 / Numerical Approach for Simulation of Fluid Flow in Torque Flow Pumps / Applied Mechanics and Materials 630(10):43~51

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