An embedded strategy for the analysis of fluid structure interaction problems: Numerical implementation on Graphic Processing Units (GPU) hardware and experimental validation

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

Barceona

Congreso; 11th. World Congress on Computational Mechanics (WCCM XI), 5th. European Conference on Computational Mechanics (ECCM V), 6th. European Conference on Computational Fluid Dynamics (ECFD VI); 2014

Organized by IACM International Association for Computational Mechanics

A Navier-Stokes solver based on cartesian structured FVMdiscretization with embedded bodies is presented. The solver isspecially oriented to GPGPU hardware. Fluid structure interaction withsolid bodies is performed with an explicit partitioned strategy. Thecode has been validated with an experiment that involves a fullysubmerged spherical buoy confined in a cubic box, attached to thebottom of the box by a string. Harmonic displacement is imposed tothe box with a shake table. Position of the buoy is determined with aMotion Capture algorithm, which determines the amplitude and phase ofthe buoy position. This response of the system is compared to thenumerical results and allows us to validate the predicted drag andadded mass of the body.