CIMEC   24726
CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A COUPLING STRATEGY FOR NON-COINCIDENT MESHES IN PARTITIONED MULTIPHYSICS PROBLEMS
Autor/es:
MARCO SCHAUER; GUSTAVO A. RÍOS RODRIGUEZ
Lugar:
Braunschweig
Reunión:
Exposicin; Vortragsankündigung - Sonderforschungsbereich 880; 2017
Institución organizadora:
Technische Universität Braunschweig - Institut für Statik
Resumen:
Nowadays, numerical simulations of multiphysics problems like fluid structure interaction or soil structure interaction, among others, have become quite popular. Because of the complexity of such simulations and due to the high costs involved in the development of scientific parallel codes, it is convenient to use a partitioned solution strategy whenever possible. The coupling of well developed and reliable computer codes can tackle, without introducing major modifications, the numerical solution of such problems. In this scenario, it is desirable to count with the flexibility of using different discretizations for computing the numerical solution of each subproblem. However, this introduces the requirements of projecting the solution from the interface of one subdomain to that of its neighbour subdomain, to track the displacement of the boundary subdomains and to sychronize the solvers. In this presentation, projection and tracking algorithms are introduced. The accuracy and conservativeness of the implemented algorithms are shown by considering well established benchmarks for fluid structure interaction problems. In all cases, the meshes are non-coincident at the interfaces. Then, it is explained how the coupling strategy is introduced as a library for being used in the solution of a soil structure interaction solver based on a FEM/SBFEM formulation.