Authors: K. Abe, Y. Miyata
Addresses: Department of Aeronautics and Astronautics, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan. ' Department of Aeronautics and Astronautics, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Abstract: A hybrid approach connecting Large Eddy Simulation (LES) with Reynolds-Averaged Navier-Stokes (RANS) modelling in the near-wall region is studied. The present hybrid model includes an advanced non-linear eddy-viscosity formulation to more correctly resolve the near-wall stress anisotropy. To investigate the model performance for complex turbulence, the present model is applied to a periodic hill flow with massive separation. The present model provides encouraging results for further development of this kind of hybrid LES/RANS model.
Keywords: turbulence; large eddy simulation; LES; hybrid LES/RANS model; nonlinear eddy-viscosity model; NLEVM; separation; CFD; computational fluid dynamics; Reynolds-Averaged Navier-Stokes modelling; near-wall stress anisotropy; flow fields; separation; periodic hill flow.
Progress in Computational Fluid Dynamics, An International Journal, 2006 Vol.6 No.8, pp.475 - 486
Published online: 17 Nov 2006 *Full-text access for editors Access for subscribers Purchase this article Comment on this article