Freak wave forces on a vertical cylinder

Freak wave forces on a vertical cylinder
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垂直圆柱体上的反常波力

DOI:
10.1016/j.coastaleng.2016.03.007
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发表时间:
2016-08
影响因子:
4.4
通讯作者:
Xiao Longfei
Xiao Longfei
中科院分区:
工程技术1区
文献类型:
--
作者:
Deng Yanfei;Yang Jianmin;Zhao Wenhua;Li Xin;Xiao Longfei

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本文研究了奇异波作用于垂直截断圆柱体的波浪力。在一个波浪水槽中,根据新年波浪原型生成了一系列反常的波浪序列。测量了固定圆柱上的直联力和俯仰力矩,并用不同的波浪运动学模型对它们进行了Morison预测。与Morison结果相比,在测量中观察到更大的力峰和更浅的力谷。此外,波前陡度与无因次顺向力的关系比传统的波峰陡度更为密切。还成功地进行了基于小波变换的分析,揭示了入射波、联列力和它们之间的传递函数的局部特征。
This study investigates the wave forces acting on a vertical truncated cylinder induced by freak waves. A series of freak wave trains were generated based on the New Year wave prototype in a wave flume. The inline forces and pitch moments on the fixed cylinder were measured and Morison predictions on them were also performed with different wave kinematic models. Compared with the Morison results, larger force peaks and shallower force troughs are observed in the measurements. Besides, the wave front steepness is found to have a closer relationship with the non-dimensional inline force than the conventional wave steepness. Wavelet transform-based analyses were also successfully performed to reveal the local characteristics of the incident waves, inline forces and transfer functions between them.
DOI: 10.2112/04-0274.1
发表时间: 2010-05
期刊: --
影响因子: --
作者:
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通讯作者: Mohamed A. K. Elsayed
DOI: 10.1061/(asce)0733-950x(1987)113:2(122
发表时间: 1987-03
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