Numerical study of the hydrodynamic interaction between ships in viscous and inviscid flow

Study of the hydrodynamics interaction between a tu g and a tanker ship model, using Computational Fluid Dynamics (CFD) code was p erformed to calculate the hydrodynamics interaction force coefficients and th e associated wave pattern generated by the two vessels. The study was conducted for two veloci ties (full scale) of 4.0 and 6.0kn and depth-draught ratio 1.1 and 1.51, respectively. Two set of variables were considered, which are the longitudinal offset, and the lateral distan ce. A simulation of the Tug sailing freely was conducted to the pure interaction loads with or wit hout deformable free surface. Several CFD models were carried out using viscous and inviscid fluid flow taking into account the free surface.

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