Nonlinear characteristics of wave resonance in the gap between twin barges

被引：0
|
作者：
Ning D. [1 ,2 ]
Qiu S. [1 ,2 ]
Zhang C. [1 ,2 ]
机构：
[1] State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian
[2] Offshore Renewable Energy Research Center, Dalian University of Technology, Dalian
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2019年 / 40卷 / 02期
关键词：
Artificial viscosity; High-order boundary element; Narrow gap; Nonlinear waves; Resonance; Source wave formation; Twin barges;
D O I：
10.11990/jheu.201803089
中图分类号：
学科分类号：
摘要：
Based on high-order boundary element method, a fully-nonlinear potential flow numerical wave flume is developed to study the nonlinear characteristics of wave resonance between two adjacent barges. Incidental waves are generated by an inner source method. Damping zones are used at two ends of the flume to dissipate outgoing waves. An artificial damping term is introduced to free surface boundary resonance conditions in the gap to approximate the energy dissipation. By comparing the numerical results with the experimental data, we determine the damping parameters in the narrow gap corresponding to different incident wave heights. Our findings show that, with the increase of incident wave heights, the damping strength that represents the viscous dissipation at resonance increases and the nonlinear characteristics of wave run-ups along the upstream side of the barge are enhanced, whereas the resonance frequency of the liquid in the gap is not evidently affected and the dimensionless wave height at resonance decreases. © 2019, Editorial Department of Journal of HEU. All right reserved.
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页码：234 / 239
页数：5
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