Simulating the evolution of focused waves by a two-layer Boussinesq-type model
作者机构：State Environmental Protection Key Laboratory of Marine Ecosystem RestorationNational Marine Environmental Monitoring CenterDalian 116023China College of Transportation EngineeringDalian Maritime UniversityDalian 116026China State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalian 116024China
出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)
年 卷 期：2024年第43卷第5期
页 面：91-99页
核心收录：
学科分类：081505[工学-港口、海岸及近海工程] 07[理学] 0707[理学-海洋科学] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造]
基 金：The National Natural Science Foundation under contract Nos 52171247 51779022 52071057 and 51709054
主 题：focused waves numerical simulation Boussinesq-type model velocity profile
摘 要：Accurate simulation of the evolution of freak waves by the wave phase focusing method requires accurate linear and nonlinear properties,especially in deep-water *** this paper,we analyze the ability to simulate deep-water focused waves of a two-layer Boussinesq-type(BT)model,which has been shown to have excellent linear and nonlinear *** further improve the numerical accuracy and stability,the internal wavegenerated method is introduced into the two-layer Boussinesq-type ***,the sensitivity of the numerical results to the grid resolution is analyzed to verify the convergence of the model;secondly,the focused wave propagating in two opposite directions is simulated to prove the symmetry of the numerical results and the feasibility of the internal wave-generated method;thirdly,the limiting focused wave condition is simulated to compare and analyze the wave surface and the horizontal velocity of the profile at the focusing position,which is in good agreement with the measured *** the simulation of focused waves in very deep waters agrees well with the measured values,which further demonstrates the capability of the two-layer BT model in simulating focused waves in deep waters.
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