Numerical simulations of super rogue waves in a numerical wave tank

被引：5
作者：
Hu, Zhe [1 ]
Zhang, Xiaoying [1 ]
Li, Yan [1 ]
Li, Xiaowen [1 ]
Qin, Hao [2 ]
机构：
[1] Jimei Univ, Sch Marine Engn, Key Lab Ships & Ocean Engn Fujian Prov, Xiamen 361021, Peoples R China
[2] China Univ Geosci, Coll Marine Sci & Technol, Wuhan 430074, Peoples R China
来源：
OCEAN ENGINEERING | 2021年 / 229卷
基金：
中国国家自然科学基金;
关键词：
Super rogue waves; Numerical wave tank; Velocity field; Pressure field; Stokes waves; INSTABILITY; MECHANISMS; EQUATIONS; EVOLUTION; WATER; MODEL; SEA;
D O I：
10.1016/j.oceaneng.2021.108929
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Following the experiments of Chabchoub et al. (2012b), super rogue waves up to the fifth order are simulated in a numerical wave tank under the framework of Navier-Stokes equations for the first time. The numerical wave tank solves 2D Navier-Stokes equations by using the Finite Difference Method and simulates free-surface flows by the Volume-of-Fluid method. The simulation results are verified against the theory of high-order rational solutions of the cubic Schrodinger equation. The features of localized velocity and pressure field are investigated by making comparison against those of standard 5-order Stokes waves. It is found that the flow field patterns of super rogue waves resemble those of equivalent Stokes waves while notable quantitative difference can be observed.
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页数：16
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