Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL INVESTIGATION OF UNSTEADY CAVITATING FLOW ON A THREE-DIMENSIONAL TWISTED HYDROFOIL

3차원 비틀어진 날개 주위의 비정상 공동 유동에 대한 수치적 연구

  • 박선호 (서울대학교 대학원 조선해양공학과) ;
  • 이신형 (서울대학교 조선해양공학과 해양시스템공학연구소)
  • Received : 2011.06.08
  • Accepted : 2011.09.02
  • Published : 2011.09.30
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Abstract

Unsteady sheet cavitation on a three-dimensional twisted hydrofoil was studied using an unsteady Reynolds-averaged Navier-Stokes equations solver based on a cell-centered finite volume method. As a verification test of the computational method, non-cavitating and cavitating flows over a modified NACA66 foil section were simulated and validated against existing experimental data. The numerical uncertainties of forces and pressure were evaluated for three levels of mesh resolution. The computed pressure on the foil and the cavity shedding behavior were validated by comparing with existing experimental data. The cavity shedding dynamics by re-entrant jets from the end and sides of the cavity were investigated.

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References

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