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Freak wave forces on a vertical cylinder
Abstract 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.
Highlights We measured the New Year wave forces on a vertical cylinder. We performed the wave forces predictions with different wave kinematic models. Larger peaks and shallower troughs are observed compared with the predictions. A closer relation was found between the inline forces and the wave front steepness. The local wave force transfer functions were investigated using the wavelet transform method.
Freak wave forces on a vertical cylinder
Abstract 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.
Highlights We measured the New Year wave forces on a vertical cylinder. We performed the wave forces predictions with different wave kinematic models. Larger peaks and shallower troughs are observed compared with the predictions. A closer relation was found between the inline forces and the wave front steepness. The local wave force transfer functions were investigated using the wavelet transform method.
Freak wave forces on a vertical cylinder
Deng, Yanfei (Autor:in) / Yang, Jianmin (Autor:in) / Zhao, Wenhua (Autor:in) / Li, Xin (Autor:in) / Xiao, Longfei (Autor:in)
Coastal Engineering ; 114 ; 9-18
20.03.2016
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Freak wave forces on a vertical cylinder
British Library Online Contents | 2016
|Freak wave forces on a vertical cylinder
Online Contents | 2016
|Freak wave forces on a vertical cylinder
British Library Online Contents | 2016
|Freak wave forces on a vertical cylinder
British Library Online Contents | 2016
|Springer Verlag | 1990
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