Analysis and Prediction of Thin-Airfoil Stall Phenomena with Hybrid Turbulence Methodology

Abstract

Analysis and prediction of thin-airfoil stall phenomena of a NACA 64A006 airfoil are numerically investigated using large-eddy simulation (LES)/Reynolds-averaged Navier-Stokes (RANS) hybrid methodology with a high-order compact differencing scheme. Subsonic flow of M∞ = 0.17 with the high Reynolds number of Re = 5.8 x 10 6 is considered, and the angle of attack is varied from 4.0 to 11.0 deg