par Muller, Wolf-Christian 
;Knaepen, Bernard ;Agullo, Olivier ;Carati, Daniele
Référence Fluid mechanics and its applications, 65, page (367-378)
Publication Publié, 2004
;Knaepen, Bernard ;Agullo, Olivier ;Carati, Daniele Référence Fluid mechanics and its applications, 65, page (367-378)
Publication Publié, 2004
Article révisé par les pairs
| Résumé : | The numerical large eddy simulation (LES) technique is applied to isotropic magnetohydrodynamic (MHD) turbulence. Two dynamic MHD subgrid-scale models of gradient diffusion type are presented for this purpose, taking into account the fundamental differences between the dissipation mechanisms of the velocity and the magnetic field. Additional explicit Gaussian filtering in combination with the tensor-diffusivity mixed model approach is also considered. The LES method is successfully tested a posteriori on scalar level by comparing the obtained results to data stemming from high-resolution direct numerical simulations of decaying threedimensional MHD turbulence. © 2002 Kluwer Academic Publishers. |
