한국전산유체공학회:학술대회논문집

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

STUDY ON THE HYDRAULIC DESIGN OF 2 STAGE MIXED FLOW PUMP

2단 사류펌프의 임펠러 성능향상 방안 연구

  • 김영주 (한국지질자원연구원 광물자원연구본부) ;
  • 우남섭 (한국지질자원연구원 광물자원연구본부) ;
  • 권재기 (한국지질자원연구원 광물자원연구본부) ;
  • 정소걸 (한국지질자원연구원 광물자원연구본부) ;
  • 박의섭 (한국지질자원연구원 광물자원연구본부) ;
  • 배상은 (한국지질자원연구원 광물자원연구본부) ;
  • 박수한 (대우조선해양)
  • Published : 2011.05.26
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Abstract

The seawater lift pump system is responsible for maintaining the open canal level to provide the suction flow of circulating water pump at the set point. The objective of this paper is to design a 2-stage mixed flow pump(for seawater lifting) by inverse design and to evaluate the overall performance and the local flow fields of the pump by using a commercial CFD code. Rotating speed of the impeller is 1,750 rpm with the flow rate of 2,700 $m^3/h$. Finite volume method with structured mesh and Realizable ${\kappa}-{\varepsilon}$ turbulent model is used to guaranty more accurate prediction of turbulent flow in the pump impeller. The numerical results such as static head brake horse power and efficiency of the mixed flow pump are compared with the reference data. Also, the periodic condition calculation method for the mixed flow pump was carried out in order to investigate the pump performance characteristics with the modification of impeller geometry.

Keywords