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정연규,현성윤,장근식,최성욱 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
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-ω model. We investigate the parametric effect of angle of attacks, Reynolds number, and the location where the microflap is installed.