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Provedor de dados:  ArchiMer
País:  France
Título:  Comparison between three-dimensional linear and nonlinear tsunami generation models
Autores:  Kervella, Youen
Dutykh, Denys
Dias, Frédéric
Data:  2007-07
Ano:  2007
Palavras-chave:  Nonlinear shallow water equations
Potential flow
Water waves
Boundary element method
Finite volume method
Tsunami generation
Resumo:  The modeling of tsunami generation is an essential phase in understanding tsunamis. For tsunamis generated by underwater earthquakes, it involves the modeling of the sea bottom motion as well as the resulting motion of the water above. A comparison between various models for three-dimensional water motion, ranging from linear theory to fully nonlinear theory, is performed. It is found that for most events the linear theory is sufficient. However, in some cases, more-sophisticated theories are needed. Moreover, it is shown that the passive approach in which the seafloor deformation is simply translated to the ocean surface is not always equivalent to the active approach in which the bottom motion is taken into account, even if the deformation is supposed to be instantaneous.
Tipo:  Text
Idioma:  Inglês

Editor:  Springer
Formato:  application/pdf
Fonte:  Theoretical and Computational Fluid Dynamics (0935-4964) (Springer), 2007-07 , Vol. 21 , N. 4 , P. 245-269
Direitos:  2007 Springer

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