Modeling of the group structure of waves in the problems of the impact of waves on a ship

Marine Hydrophysical Institute RAS, department of remote research methods, 299011, 2, Kapitanskaya St., Sevastopol, Russian Federation

^* Corresponding author: sevzepter@mail.ru

Abstract

The variability of the group structure sea surface waves is analyzed by numerical simulation. The analysis is carried out on the basis of an analytical model that describes the group structure of nonlinear waves. The characteristics of the wave group are controlled by two parameters, the group height factor (GFH) and the group length factor (GLF). With a fixed wave energy, the maximum wave height is determined only by GFH and does not depend on the GLF. It is shown that if GFH varies from 0.1 to 0.9, then at a fixed wave energy, the maximum wave height in the group increases by one and a half times. As the GLF increases, the number of high-height waves successively affecting the ship increases.