Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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AERODYNAMIC AND NOISE CALCULATIONS OF HELICOPTER ROTOR BLADES USING LOOSE CFD-CSD COUPLING METHODOLOGY

CFD-CSD 연계 기법을 이용한 로터 블레이드 공력 및 소음 해석

  • Kang, H.J. (Korea Aerospace Research Institute, Rotor Team) ;
  • Kim, D.H. (Korea Aerospace Research Institute, Rotor Team) ;
  • Wie, S.Y. (Korea Aerospace Research Institute, Rotor Team)
  • 강희정 (한국항공우주연구원, 회전익기술팀) ;
  • 김도형 (한국항공우주연구원, 회전익기술팀) ;
  • 위성용 (한국항공우주연구원, 회전익기술팀)
  • Received : 2014.07.11
  • Accepted : 2014.08.18
  • Published : 2014.09.30
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Abstract

The aerodynamic and noise calculations were performed through the CFD-CSD loose coupling methodology. In the loose coupling process, the trimmed rotor airloads were predicted by the in-house CFD code based on unstructured overset meshes, and the trim of the rotorcraft and the aeroelastic deformation of rotor blades were accounted with the CAMRAD II rotorcraft comprehensive code. The set of codes was used to analyze the HART-II baseline test condition. The effect of grid resolution and time step was examined and the loose coupling approach was found to be stable and convergent for the case. Comparison of the resulting sectional airloads, structural deformations, the noise carpets and the wake geometry with experimentally measured data was presented and showed the good agreement.

Keywords

References

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