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 引用本文: 王大国 邹志利 唐春安. 直立码头前船波浪力耦合计算模型[J]. 力学学报, 2006, 38(6): 767-775.
Daguo Wang, Zhili Zou, Chun'an Tang. Study on nonlinear wave motions and wave forces on ship sections against vertical quay in a harbor[J]. Chinese Journal of Theoretical and Applied Mechanics, 2006, 38(6): 767-775.
 Citation: Daguo Wang, Zhili Zou, Chun'an Tang. Study on nonlinear wave motions and wave forces on ship sections against vertical quay in a harbor[J]. Chinese Journal of Theoretical and Applied Mechanics, 2006, 38(6): 767-775.

## Study on nonlinear wave motions and wave forces on ship sections against vertical quay in a harbor

• 摘要: 建立了外域用Boussinesq方程、内域用刚体运动方程的直立码头前二维船剖面波浪力的时域计算耦合模型，内域与外域在交界面的匹配条件是流量连续和压力相等. 进行了相关模型实验，并把计算结果与实验结果进行了对比. 推导了船体与水底和直立码头之间间隙内流体运动的自振频率，研究了间隙内流体运动的共振现象.

Abstract: A two-dimensional time-domain coupled numerical model isdeveloped to calculate the nonlinear wave forces acting on a ship sectionagainst vertical quay in a harbor. The fluid domain is divided into an innerdomain and an outer domain. The outer domain is the area between the leftside of the ship section and the incident boundary, where the flow canbe expressed byBoussinesq equations. The rest area is the inner domain, which is the domainbeneath the ship section plus the domain between the right side of the shipsection and the vertical quay wall. The flow in the inner domain can be expressed byNewton's Second Law. Matching conditions on the interface between the innerdomain and the outer domain are the continuation of volume flux and theequality of pressures. The numerical results of the coupled model agree wellwith the experimental data for wave elevations and wave forces. The naturalfrequency of the fluid motions in the gap between a ship section, seabed andvertical quay wall is derived. It is shown from the experimental data andnumerical results that the resonance waves in the gap are induced by the first orhigher harmonics of incident waves, and the first or higher order horizontalwave forces on the ship section against vertical quay wall increasegreatly whenthe frequency of the harmonics of incident waves is close to the naturalfrequency of fluid motions in the gap.

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