Abstract
A method for the evaluation of the hydrodynamic forces and moment on a cylinder, located near a vertical wall in water of finite depth, in regular waves, is presented. The method is applied to the simple case of a circular cylinder. The motions of the cylinder and the mean lateral drift force due to the waves are also evaluated. The presence of the wall is shown to have a pronounced effect on the added-mass and damping coefficients of the cylinder in a certain frequency range; the mean lateral force may become negative (directed toward the incident waves) in this range. A simple physical explanation for the results is provided.
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