A NUMERICAL METHOD OF SOLITARY WAVE FORCES ACTING ON A LARGE VERTICAL CYLINDER

Takumi Ohyama

Abstract


Solitary wave forces acting on a large vertical cylinder are calculated using a timestepping method which improves upon the conventional boundary element approaches. The effect of this improvement on the numerical solution is a more realistic solitary wave profile. Nonlinear effects on the solitary wave forces are investigated by comparing the numerical results with the first approximations given by Isaacson. The first approximation for overturning moment is underestimated remarkably when the incident wave height is relatively high.

Keywords


numerical method; solitary wave; wave force; vertical cylincer

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