Advances in the Solution of NS Eqs. in GPGPU Hardware. Modelling Fluid Structure Interaction for a Submerged Spherical Buoy

MARIO A. STORTI; COSTARELLI, SANTIAGO; GARELLI, L.; CRUCHAGA, MARCELA; AUSENSI, RONALD; IDELSOHN, SERGIO

Buenos Aires

Congreso; 1st Pan-American Congress on Computational Mechanics. XI Argentine Congress on Computational Mechanics. MECOM 2015; 2015

Centro Internacional de Métodos Computacionales en Ingeniería (CIMNE) y Asociación Argentina de Mecánica Computacional (AMCA)

General Purpose Garphics Processing Units (GPGPUs) are coprocessor boards that have a very high raw computing power with respect to their price. In this work we present the implementation of a fluid structure interaction (FSI) code that runs on GPGPUs. The code is based on the Fractional Step Method with a Finite Volume discretization on structured Cartesian grids. Solids are treated with second order Immersed Boundary technique, and the FSI is performed with a partitioned integration. The efficiency of the code is studied, and the results are validated against experimental results and with a boundary fitted code based on the Finite Element (FEM), with Arbitrary Lagrangian-Eulerian (ALE) on unstructured grid.