A space and time fixed point mesh adaptation method
Résumé
We introduce a space-time metric-based approach for the best set of spatial meshes M opt (t) combined with the best set time step τ opt (t) of space-time complexity N st for the calculation of transient flows with implicit time advancing. Both types of error estimate, feature-based and goal-oriented, are considered for the compressible RANS equations. The case of a mesh which is adapted at each time step, and the case where the mesh is constant during a time subinterval of the whole simulation are theoretically analyzed. These space-time error estimates are then considered inside a Global Transient Fixed Point mesh adaptation algorithm. Applications to flow with vortex shedding past a cylinder are then described.
Domaines
Mathématiques [math]Origine | Fichiers produits par l'(les) auteur(s) |
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Licence |
Domaine public
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