03.1 - Aerodynamics – CFD Methods and Validation
EFFECT OF LES LENGTH SCALE AND NUMERICAL SCHEME IN HYBRID RANS-LES OF FREE SHEAR LAYER FLOWS
S. Arvidson¹, M. Carlsson, Chalmers University of Technology, Sweden; S. Nilsson¹; ¹Saab Aeronautics, Sweden
The effect of LES length scale and numerical scheme in hybrid RANS-LES of free shear layer flows is investigated using an unstructured compressible ?ow solver. It is concluded that the choice of LES length scale is vital for accurate predictions and that the RANS-to-LES grey-area can be much reduced which is very valuable in industrial aeronautical applications.