A Discontinuous Galerkin Variational Multiscale Approach to LES of Turbulent Flows

Marta de La Llave Plata (1) , Eric Lamballais (2) , Vincent Couaillier (1)

1 DAAA, ONERA, Université Paris-Saclay (COmUE) [Châtillon]
2 PPrime [Poitiers] - Institut Pprime [UPR 3346]

Three approaches to LES based on the DG method, namely, the no-model, the standard LES and the VMS approaches, are compared for two low-Mach-number configurations at high Reynolds number. The effect of the numerical flux function on the quality of the DG-LES solutions is also studied in the context of very coarse discretisations.

Mots clés: LES Large-Eddy Simulation; Standard LES; VMS; Low mach number; High Reynolds number; Numerical flux function; Very coarse discretisation

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Marta de La Llave Plata, Eric Lamballais, Vincent Couaillier. A Discontinuous Galerkin Variational Multiscale Approach to LES of Turbulent Flows. Direct and Large-Eddy Simulation XI, , pp.47-52, 2019, 978-3-030-04915-7. ⟨10.1007/978-3-030-04915-7_7⟩. ⟨hal-02859999⟩