TY - GEN
T1 - A non-equilibrium dynamic wall-model for LES of high Reynolds number airfoil flow near stall condition
AU - Kawai, Soshi
AU - Kengo, Asada
AU - Fujii, Kozo
PY - 2013/8/19
Y1 - 2013/8/19
N2 - Large-eddy simulation (LES) with non-equilibrium dynamic wall-model is applied to a subsonic flow over an airfoil near stall condition at high Reynolds number (chord based Rec = 2.1×106) to investigate the predictability of the wall-modeled LES for the transitional and separated flow. The wall model considered in this study is built based on the recent wall-model developments by Kawai and Larsson [Phys. Fluids 24 015105, 2012; and Phys. Fluids accepted (to appear), 2013] and is extended to the transitional and separated flow by introducing a transition treatment in the wall model. Comparisons between the non-equilibrium wall model and equilibrium model illustrate the importance of involving the non-equilibrium effects into the wall model. By incorporating the non-equilibrium effects, the wall-modeled LES yields accurate resolved turbulence, both in terms of statistics and structures.
AB - Large-eddy simulation (LES) with non-equilibrium dynamic wall-model is applied to a subsonic flow over an airfoil near stall condition at high Reynolds number (chord based Rec = 2.1×106) to investigate the predictability of the wall-modeled LES for the transitional and separated flow. The wall model considered in this study is built based on the recent wall-model developments by Kawai and Larsson [Phys. Fluids 24 015105, 2012; and Phys. Fluids accepted (to appear), 2013] and is extended to the transitional and separated flow by introducing a transition treatment in the wall model. Comparisons between the non-equilibrium wall model and equilibrium model illustrate the importance of involving the non-equilibrium effects into the wall model. By incorporating the non-equilibrium effects, the wall-modeled LES yields accurate resolved turbulence, both in terms of statistics and structures.
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M3 - Conference contribution
AN - SCOPUS:84881460502
SN - 9781624101816
T3 - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
BT - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
T2 - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Y2 - 7 January 2013 through 10 January 2013
ER -