A Time-Domain Coupled Model for Nonlinear Wave Forces on A Fixed Box-Shaped Ship in A Harbor  

作　　者：王大国 邹志利 谭国焕 刘霞 

机构地区：[1]Center for Material Failure Modeling Research,Dalian University [2]The State Key Laboratory of Coastal and Offshore Engineering,Department of Civil Engineering,Dalian University of Technology [3]Department of Civil and Structural Engineering,The University of Hong Kong

出　　处：《China Ocean Engineering》2010年第1期41-56,共16页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.50809008 and59979002);the Hong Kong Research Council (HKU7171/06E);the Open Foundation of Hunan Province Key Lab-oratory of Water & Sediment Science and Water Hazard Prevention (Grant No.2008SS04);the Dalian Science and Technology Foundation (Grant No.2007J23JH027)

摘　　要：A 2-D time-domain numerical coupled model is developed to obtain an efficient method for nonlinear wave forces on a fixed box-shaped ship in a harbor. The domain is divided into an inner domain and an outer domain. The inner domain is the area beneath the ship and the flow is described by the simplified Euler equations. The other 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. Along the interface boundaries between the inner domain and the outer domain, the volume flux is assumed to be continuous and the wave pressures are equal. Relevant physical experiment is conducted to validate the present model. It is shown that the numerical results agree with the experimental data. Compared with the coupled model with the flow in the inner domain governed by the Laplace equation, the present coupled model is more efficient and its solution procedure is more simple, which is particularly useful for the study on the effect of the nonlinear wave forces on a fixed box-shaped ship in a large harbor.A 2-D time-domain numerical coupled model is developed to obtain an efficient method for nonlinear wave forces on a fixed box-shaped ship in a harbor. The domain is divided into an inner domain and an outer domain. The inner domain is the area beneath the ship and the flow is described by the simplified Euler equations. The other 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. Along the interface boundaries between the inner domain and the outer domain, the volume flux is assumed to be continuous and the wave pressures are equal. Relevant physical experiment is conducted to validate the present model. It is shown that the numerical results agree with the experimental data. Compared with the coupled model with the flow in the inner domain governed by the Laplace equation, the present coupled model is more efficient and its solution procedure is more simple, which is particularly useful for the study on the effect of the nonlinear wave forces on a fixed box-shaped ship in a large harbor.

关 键 词：coupled model wave forces Boussinesq equations Euler equations 

分 类 号：P731.22[天文地球—海洋科学]