한국전산유체공학회:학술대회논문집
- 2011.05a
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- Pages.434-440
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- 2011
Analysis of Unsteady Subsonic Flow Around a High Angle of Attack of the Oscillating Airfoil
진동하는 고 받음각 날개주위의 비정상 아음속 유동해석
Abstract
Oscillating airfoil haw been challenged for the dynamic stalls of airfoil am wind turbines at high angle of attach. Especially, the pressure oscillation has a huge effect on noise generation, structure damage, aerodynamic performance am safety, because the flow has strong unsteadiness at high angle of attack. In this paper, the unsteady aerodynamics coefficients were analyzed for the oscillating airfoil at high angle of attack around two dimensional NACA0012 airfoil. The two dimensional unsteady compressible Navier-Stokes equation with a LES turbulent model was calculated by OHOC (Optimized High-Order Compact) scheme. The flow conditions are Mach number of 0.2 and Reynolds number of
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