Traveling surface waves of moderate amplitude in shallow water

We study traveling wave solutions of an equation for surface waves of moderate amplitude arising as a shallow water approximation of the Euler equations for inviscid, incompressible and homogenous fluids. We obtain solitary waves of elevation and depression, including a family of solitary waves with...

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Detalhes bibliográficos
Autores: Gasull, Armengol|||0000-0002-1719-8231, Geyer, Anna|||0000-0003-1834-2108
Tipo de documento: artigo
Data de publicação:2014
País:España
Recursos:Universitat Autònoma de Barcelona
Repositório:Dipòsit Digital de Documents de la UAB
Idioma:inglês
OAI Identifier:oai:ddd.uab.cat:150693
Acesso em linha:https://ddd.uab.cat/record/150693
https://dx.doi.org/urn:doi:10.1016/j.na.2014.02.005
Access Level:Acceso aberto
Palavra-chave:Compact support
Homoclinic orbit
Shallow water
Solitary waves
Descrição
Resumo:We study traveling wave solutions of an equation for surface waves of moderate amplitude arising as a shallow water approximation of the Euler equations for inviscid, incompressible and homogenous fluids. We obtain solitary waves of elevation and depression, including a family of solitary waves with compact support, where the amplitude may increase or decrease with respect to the wave speed. Our approach is based on techniques from dynamical systems and relies on a reformulation of the evolution equation as an autonomous Hamiltonian system which facilitates an explicit expression for bounded orbits in the phase plane to establish existence of the corresponding periodic and solitary traveling wave solutions.