한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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고 받음각 ONERA 70도 삼각날개 와류 유동의 압력 섭동 분석

NUMERICAL ANALYSIS OF PRESSURE PERTURBATION OF DELTA WING VORTEX FLOW AT A HIGH ANGLE OF ATTACK

  • 손미소 (건국대학교 항공우주정보시스템공학과) ;
  • 사정환 (건국대학교 항공우주정보시스템공학과) ;
  • 박수형 (건국대학교 항공우주정보시스템공학과) ;
  • 변영환 (건국대학교 항공우주정보시스템공학과)
  • Son, M.S. (Dept. of Aerospace Information System Engineering, Konkuk Univ.) ;
  • Sa, J.H. (Dept. of Aerospace Information System Engineering, Konkuk Univ.) ;
  • Park, S.H. (Dept. of Aerospace Information System Engineering, Konkuk Univ.) ;
  • Byun, Y.H. (Dept. of Aerospace Information System Engineering, Konkuk Univ.)
  • 투고 : 2015.05.26
  • 심사 : 2015.06.25
  • 발행 : 2015.06.30
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초록

Delayed Detached-Eddy Simulation was conducted to investigate surface pressure coefficient distribution and surface pressure fluctuation over an ONERA 70-degree delta wing at a high angle of attack. Time-averaged surface pressure distribution is directly affected by the primary vortices, whereas the pressure fluctuation is influenced by the unsteady fluctuating boundary layer over the surface. And pressure coefficient, velocity, pressure fluctuation, and turbulent kinetic energy were analyzed along the vortex core in order to investigate the process of vortex breakdown. Consequently, strong pressure fluctuations were found where the vortex breakdown was occurred at x~620 mm. The turbulent kinetic energy abruptly increased and followed after the vortex breakdown.

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참고문헌

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