![]() ![]() ![]() Based on these reliable numerical computations, the characteristics of ship motions in a restricted waterway are studied. Virtually perfect agreement exists between experiments and numerical predictions, suggesting the validity of the present integral-equation method. Computed added mass, damping coefficient and wave-exiting force for a hemisphere and for a ship with two planes of symmetry are compared with corresponding experiments which are also carried out in the present study. The proposed calculation method is restricted to the zero-speed problem, but proves in principle an exact solution for a body of arbitrary geometry. The Green function satisfying the tank-wall boundary condition is provided by first considering an infinite number of mirror images and then obtaining a closed-form expression for the resultant infinite series. A 3-D integral-equation method is developed for predicting the hydrodynamic forces acting on and resulting motions of a ship, with the effects of tank-wall interference included. The integral equations for the radiation and diffraction velocity potentials on the body surface are derived by applying Green's theorem, and solved numerically with a discretisation of the body in panels with the velocity potential assumed constant on each panel. 3-D INTEGRAL-EQUATION METHOD FOR CALCULATING THE EFFECTS OF TANK-WALL INTERFERENCE ON HYDRODYNAMIC FORCES ACTING ON A SHIPĪ 3-D integral-equation method is developed for predicting the hydrodynamic forces acting on and resulting motions of a ship, with the effects of tank-wall interference included. ![]()
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