Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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PROPULSIVE PERFORMANCE PREDICTION OF A DUCTED PROPELLER IN OPEN WATER CONDITION USING CFD

CFD를 이용한 덕트 프로펠러 단독 상태에서의 추진 성능 예측

  • Lee, K.-U. (Maritime Research Institute, Hyundai Heavy Industries) ;
  • Jin, D.-H. (School of Mechanical Engineering, University of Ulsan) ;
  • Lee, S.-W. (School of Mechanical Engineering, University of Ulsan)
  • 이경언 (현대중공업 선박연구소) ;
  • 진두화 (울산대학교 기계공학부) ;
  • 이상욱 (울산대학교 기계공학부)
  • Received : 2015.04.15
  • Accepted : 2015.06.15
  • Published : 2015.06.30
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Abstract

In this study, a numerical prediction on propulsive performance of a ducted propeller in open water condition was carried out by solving Reynolds averaged Navier-Stokes(RANS) equation using computational fluid dynamics(CFD). A configuration of propeller Ka-470 inside duct 19A was considered. Hexahedral grid system was generated by dividing whole computational domain into three separate regions; propeller, duct and outer flow region. A commercial CFD software, ANSYS-CFX was used for numerical simulations. Results were compared with experimental data and showed considerable improvement in accuracy, in comparison to those from surface panel method which is based on potential flow assumption. The results also exhibited the importance of grid system within the gap between the inner surface of duct and blade tip for accurate prediction of propulsive performance of ducted propeller.

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References

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