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International Journal of Fluid Mechanics Research

ISSN Print: 1064-2277
ISSN Online: 2152-5102

International Journal of Fluid Mechanics Research


pages 375-400

Dynamics of Interaction between Stormy Seas and a Ship with Allowance for Nonlinearities?

N. A. Serdyuchenko
Ukrainian State Marine Engineering Institute, Nikolayev, Ukraine

ABSTRACT

Approximate methods of calculation of the hydrodynamics of wind-generated sea waves and of the reaction of a ship's hull to wave action in stormy seas with allowance for nonlinear and unsteady effects in the impinging waves, wave-impact loading and the ship's oscillations are analyzed. The approximation is based on the assumption of group structure of the principal energy-conveying component of wave motion in the sea, employing asymptotic methods for solving boundary-value problems of wave dynamics and numerical methods for calculating the reaction of the ship to the action of wave packets. Certain numerical results on nonlinear pitching and heaving, wave loads and wave-induced oscillations of ships with allowance for nonlinear effects are also presented.