주기 운동하는 마이크로플랩의 효과에 대한 수치적 연구

  • 정연규 (한국과학기술원 항공우주공학과) ;
  • 현성윤 (한국과학기술원 항공우주공학과) ;
  • 장근식 (한국과학기술원 항공우주공학과) ;
  • 최성욱 (한국과학기술원 항공우주공학과)
  • Published : 2006.08.23

Abstract

Numerical study has been conducted in two dimensions about a NACA0012 airfoil with an oscillating microflap on the surface. We show that this microflap is effective in controlling the unsteady stall at high angles of attack. We solve the compressible Navier-Stokes equations for the Reynolds numbers with an extensible chimera grid fitted to the oscillatory microflap. For turbulent calculation, we adopt the SST $k-{\omega}$ model. We investigate the parametric effect of angle of attacks, Reynolds number, and the location where the microflap is installed.

Keywords