Simulation Des Grandes Echelles En Elements Finis Stabilises Paperback

Vincent Levasseur

The objective of the work is to study the Simulation of Large Scales in an aeronautical industrial context. The digital dissipation inherent in rugged industrial codes requires sub-mesh models that can adjust to calculate adequate turbulent viscosity. The Variational MultiScale Approach of Hughes et al. is developed in compressible regime under a filtered formulation, then implanted in entropic variables in the finite element solver AETHER of DASSAULT-AVIATION. Free decay studies of isotropic turbulence have shown excellent model properties. This technique is then applied to compressible flows over an open cavity. Two passive control devices are studied: a spoiler and a cylindrical bar.

9786131572166

French

Omniscriptum

156