Data/hora: 15/06/2024 07:28:50

Provedor de dados: | 5
País: | France
Título: | Integrable motion of a vortex dipole in an axisymmetric flow
Autores: | Sutyrin, G; Perrot, Xavier; Carton, Xavier.
Data: | 2008-08
Ano: | 2008
Palavras-chave: | Quasi geostrophic; Topography interaction; Rotating fluids; Vortex dynamics.
Resumo: | The evolution of a self-propelling vortex dipole, embedded in an external nondivergent flow with constant potential vorticity, is Studied in an equivalent-barotropic model commonly used in geophysical, astrophysical and plasma studies. In addition to the conservation of the Hamiltonian for an arbitrary point vortex dipole, it is found that the angular momentum is also conserved when the external flow is axisymmetric. This reduces the original four degrees of freedom to only two, so that the solution is expressed in quadratures. In particular, the scattering of antisymmetric dipoles approaching from the infinity is analyzed in the presence of an axisymmetric oceanic flow typical for the vicinity of isolated seamounts.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/2008/publication-7320.pdf

DOI:10.1016/j.physleta.2008.06.038

http://archimer.ifremer.fr/doc/00000/7320/

Editor: | Elsevier
Formato: | application/pdf
Fonte: | Physics Letters A (0375-9601) (Elsevier), 2008-08 , Vol. 372 , N. 33 , P. 5452-5457

Fonte:

2008 Elsevier B.V. All rights reserved.

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