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Numerical Analysis of a Tip Vortex Flow for Propeller Tip Shapes

추진기 날개 끝 형상변화에 따른 보오텍스 유동에 대한 수치해석

  • Park, Sun-Ho (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Seo, Jeong-Hwa (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Kim, Dong-Hwan (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Rhee, Shin-Hyung (Department of Naval Architecture and Ocean Engineering, Research Institute of Marine Systems Engineering, Seoul National University) ;
  • Kim, Ki-Sup (Korea Ocean Research & Development Institute)
  • 박선호 (서울대학교 대학원 조선해양공학과) ;
  • 서정화 (서울대학교 대학원 조선해양공학과) ;
  • 김동환 (서울대학교 대학원 조선해양공학과) ;
  • 이신형 (서울대학교 조선해양공학과 해양시스템공학연구소) ;
  • 김기섭 (한국해양연구원)
  • Received : 2011.05.06
  • Accepted : 2011.10.11
  • Published : 2011.12.20

Abstract

In order to control the tip vortex cavitation occurring around the tip of a rotating propeller blade, researches on the propeller cavitation and blade tip vortex flows have been increased. In this paper, the propeller tip vortex flow for a blunt and sharp tips was studied using an unsteady Reynolds-averaged Navier-Stokes equations solver based on a cell-centered finite volume method. In numerical open water test, torques, thrusts, pressure distributions and vortex flows were compared for various rotating speeds. To consider a hull wake, the nominal wake was specified in inlet boundary condition. Pressure distributions and vortex flows with the hull wake were investigated for various propeller rotating angles. From the results, it was confirmed that the blunt tip propeller delayed the tip vortex flow.

Keywords

References

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  1. CFD Analysis of Marine Propeller-Hub Vortex Control Device Interaction vol.53, pp.4, 2016, https://doi.org/10.3744/SNAK.2016.53.4.266