Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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FLOW ANALYSIS OF THE IMPELLER WITH DIFFERENT INLET ANGLES IN THE CENTRIFUGAL PUMP

원심펌프 임펠러 입구각도 변화에 따른 유동해석

  • Lee, S.H. (School of Mechanical and Automotive Engineering, Catholic University of Daegu) ;
  • Lee, D.R. (School of Mechanical and Automotive Engineering, Catholic University of Daegu)
  • 이성현 (대구가톨릭대학교 기계자동차공학부) ;
  • 이동렬 (대구가톨릭대학교 기계자동차공학부)
  • Received : 2016.02.17
  • Accepted : 2016.03.28
  • Published : 2016.03.31
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Abstract

This research is to investigate the performance analysis for efficient design with four different inlet angles of the centrifugal pump impeller. Assuming that the rotation speed and exit angle are fixed, Four cases of the centrifugal pumps were numerically analyzed using ANSYS FLUENT. According to the numerical results, head and pump efficiency at inlet angle of 20 degrees was highest. There is no big difference of efficiency at inlet angle of 20 degrees compared to the inlet angle 30 degrees. About 15% of efficiency at inlet angle of 20 degrees is higher than inlet angle of 40 degrees and 31% higher than inlet angle oof 50 degrees. Because there is liner functional relationship between speed and flow rate, suction flow rate at inlet angle of 20 degrees is superior to the inlet angle of 30 degrees as much as 0.89%, inlet angle of 40 degrees as 13%, inlet angle of 50 as 28.4%. Head at inlet angle of 20 degrees is superior to the inlet angle of 30 degrees as much as 0.4%, inlet angle of 40 degrees as 2.7%, inlet angle of 50 degrees as 3.2%. There should exist highest efficiency and also optimal design shape at inlet angle of 20 degrees.

Keywords

References

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Cited by

  1. Large eddy simulation of energy gradient field in a centrifugal pump impeller pp.2041-2983, 2018, https://doi.org/10.1177/0954406218809127
  2. 유동해석을 통한 원심펌프 임펠러의 설계 인자 최적화 vol.27, pp.2, 2016, https://doi.org/10.7735/ksmte.2018.27.2.125