Numerical prediction of ship motion and slamming load characteristics in cross wave
Numerical prediction of ship motion and slamming load characteristics in cross wave
复制标题
横波中船舶运动和砰击载荷特性的数值预测
DOI：
10.1007/s00773-021-00818-w
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发表时间：
2021-04
影响因子：
2.6
通讯作者：
Chaohe Chen
中科院分区：
文献类型：
--
作者：
Songxing Huang;Jialong Jiao;Chaohe Chen
当两个天气系统的波浪在某一海域交汇时，会产生交叉波。深入了解船舶在横浪中的运动特性对保证船舶航行安全具有重要意义。本文首先基于CFD技术，采用RANS方法对S175集装箱船船体在横浪中的运动响应进行了分析。采用VOF方法模拟和捕捉自由水面，采用重叠网格技术模拟船舶在波浪中的运动。船舶运动的数值方法的验证已经进行了时间步长和网格独立的研究。根据数值模拟的运动结果，选取典型工况，进一步研究了艏部砰击压力和甲板上绿色水的砰击压力。结果表明，横浪作用下船舶的垂向运动响应很大，船舶经历了明显的横摇-纵摇耦合运动。在横浪状态下，还观察到了严重的艏砰击和绿色水。在对称横浪中，船首外展对基线的砰击压力可能很大。当船舶航行在非对称横浪场中时，会发生非对称砰击。
When waves from two weather systems converge at a certain sea area, cross waves can be produced. It is important to have a better understanding of the motion characteristics of ship in cross sea to ensure its navigation safety. In this paper, the motion responses of a S175 container ship hull in cross sea is first analyzed based on CFD technique using RANS method. VOF method is used to model and capture the free surface and overset grid technique is adopted to simulate ship motions in waves. Verifications on ship motion by the numerical method have been conducted for time step- and grid-independent studies. According to the motion results by numerical simulation, typical conditions are chosen for further investigation of slamming pressure on bow area and green water on deck. It is found that vertical motion responses of ship induced by cross waves can be quite large and the ship experienced obvious roll–pitch-coupled motion. Severe bow slamming and green water under cross sea state are also observed. The bow flare slamming pressure on the baseline can be quite large in symmetric cross wave. Asymmetrical slamming impacts occurred when the ship sails in an asymmetric cross wave field.
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DOI：
10.1115/omae2006-92412
发表时间：
2006
期刊：
--
影响因子：
--
作者：
N. Fonseca;Eduardo Antunes;C. Soares
通讯作者：
N. Fonseca;Eduardo Antunes;C. Soares
DOI：
--
发表时间：
2009
期刊：
Journal of Ship Mechanics
影响因子：
--
作者：
Kuang Xiao-feng
通讯作者：
Kuang Xiao-feng
DOI：
--
发表时间：
2011
期刊：
--
影响因子：
--
作者：
Sungeun Kim;Hyun-ho Lee
通讯作者：
Sungeun Kim;Hyun-ho Lee
影响因子：
2.6
作者：
C. Simonsen;J. Otzen;S. Joncquez;F. Stern
通讯作者：
C. Simonsen;J. Otzen;S. Joncquez;F. Stern
DOI：
--
发表时间：
2020
期刊：
--
影响因子：
--
作者：
Jialong Jiao;Chaohe Chen
通讯作者：
Jialong Jiao;Chaohe Chen