Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

DESIGN-ORIENTED AERODYNAMIC ANALYSES OF HELICOPTER ROTOR IN HOVER

정지비행 헬리콥터 로터의 설계를 위한 공력해석

  • 정현주 (울산대학교 항공우주공학과) ;
  • 김태승 (울산대학교 항공우주공학과) ;
  • 손창호 (울산대학교 기계자동차공학부) ;
  • 조창열 (울산대학교 항공우주공학과)
  • Published : 2006.09.01
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Abstract

Euler and Navier-Stokes flow analyses for helicopter rotor in hover were performed as low and high fidelity analysis models respectively for the future multidisciplinary design optimization(MDO). These design-oriented analyses possess several attributes such as variable complexity, sensitivity-computation capability and modularity which analysis models involved in MDO are recommended to provide with. To realize PC-based analyses for both fidelity models, reduction of flow domain was made by appling farfield boundary condition based on 3-dimensional point sink with simple momentum theory and also periodic boundary condition in the azimuthal direction. Correlations of thrust, torque and their sensitivities between low and high complexity models were tried to evaluate the applicability of these analysis models in MDO process. It was found that the low-fidelity Euler analysis model predicted inaccurate sensitivity derivatives at relatively high angle of attack.

Keywords

References

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