Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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RANS ANALYSES OF THE TIP VORTEX FLOW OF A MARINE PROPELLER

RANS법을 이용한 선박 프로펠러 날개 끝 보오텍스 유동 해석

  • Park, I.R. (Dept. of Naval Architecture and Ocean Engineering, Dong-Eui Univ.)
  • 박일룡 (동의대학교 조선해양공학과)
  • Received : 2016.04.11
  • Accepted : 2016.05.24
  • Published : 2016.06.30
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Abstract

It has been highly demanded to improve the accuracy of CFD(Computational Fluid Dynamics) methods for the assessment of the hydrodynamic performance of marine propellers in cavitating and non-cavitating flows. This paper presents a validation study on the numerical simulation of the tip vortex flow of a non-cavitating marine propeller SVA VP1304. The calculations are carried out by using the Reynolds averaged Navier-Stokes(RANS) approach, where the Reynolds Stress Model(RSM) is used for turbulence closure. The present paper contains a grid dependence test for the propeller open water simulations and a special emphasis is placed on conducting a local grid adaptation on the blade tip and in the tip vortex to reasonably reproduce the velocity and the pressure in the tip vortex flow field. The numerical results are compared with the experimental validation data, which are published in the second International Symposium on Marine Propulsors 2011(SMP'11). The present numerical results show a reasonable agreement with the experiments.

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References

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