A NUMERICAL STUDY ON THE VISCOUS EFFECTS OF WAVES TRAVELLING PAST A WEAKLY SUBMERGED CYLINDER

A NUMERICAL STUDY ON THE VISCOUS EFFECTS OF WAVES TRAVELLING PAST A WEAKLY SUBMERGED CYLINDER

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The interaction of waves with a weakly submerged Gas Range Cooker horizontal circular cylinder is studied numerically, solving 2-D Navier-Stokes equations with reference to former experimental sessions in a wave flume.A selection of aspects of the viscous wave-body interaction is analyzed, in particular the free surface elevation perturbed by the obstacle, the pressure at Dressing Stool the body surface, the inertia coefficient of the Morison equation and finally the generation, persistence and merging of vorticity structures detached from the cylinder.