Near-trapping effects for multi-column structures in deterministic and random waves
Near-trapping effects for multi-column structures in deterministic and random waves
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DOI：
10.1016/j.oceaneng.2012.09.021
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发表时间：
2013-01
影响因子：
5
通讯作者：
J. Grice;P. Taylor;R. E. Taylor
中科院分区：
文献类型：
--
作者：
J. Grice;P. Taylor;R. E. Taylor
线性理论已应用于方形柱阵列对规则波的衍射。使用计算机程序 DIFFRACT 的线性模块计算了自由表面放大，并在单柱与两柱和四柱阵列之间进行了比较。人们已经研究了近乎陷阱现象对发生暴力反应的影响。研究了改变柱形状和破坏阵列对称性对自由表面放大的影响。圆柱方阵对新波波群的衍射以及随机海况下极端事件的统计数据被用来产生净放大系数，以便在设计新结构时突出显示可能发生剧烈反应的位置。
Linear theory has been applied to the diffraction of regular waves by square arrays of columns. Free surface amplification has been calculated using the linear module of the computer program DIFFRACT and compared between solitary columns and arrays of two and four columns. Implications of the near-trapping phenomenon for the occurrence of violent responses have been looked at. The effect on free surface amplification of changing column shape and breaking up array symmetry has been studied. The diffraction of NewWave wavegroups by square arrays of circular columns and statistics of extreme events in random sea-states are used to produce a net amplification factor for highlighting probable locations of violent response when designing new structures.