Open Access

ARTICLE

A Fully Coupled Model of Non-linearWave in a Harbor

Daguo Wang¹

1 School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China.

Corresponding author. Email address:

Computer Modeling in Engineering & Sciences 2013, 91(4), 289-312. https://doi.org/10.3970/cmes.2013.091.289

Abstract

A 2-D time-domain numerical coupled model for non-linear wave forces acting on a fixed ship is developed in the present study. The whole domain is divided into the inner domain and the outer domain. The inner domain is the area around the ship section and the flow is described by the Laplace equation. The remaining area is the outer domain and the flow is defined by the higher-order Boussinesq equations in order to consider the nonlinearity of the wave motions. The matching conditions on the interfaces between the inner domain and the outer domain are the continuation of volume flux and the equality of wave elevations. The procedure of coupled solution, the length of common domain and the calculation region of the inner domain are discussed in detail. The physical experiment, including the wave flume and the waves acting on a fixed ship, the boundary element method in complex and the Boussinesq equations are conducted to validate the present model, and it is shown that the numerical results of the present model agree well with the experimental data and the other numerical results, but the computational efficiency of the present model is much higher than that of the boundary element method in complex, so the present model is efficient and accurate, which can be used for the study on the effect of the nonlinear wave forces acting on a fixed ship or other structures in a large harbor.

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Keywords

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