Modeling velocity in gradient flows with coupled-map lattices with advection
dc.contributor.author | Lind, Pedro Gonçalves | pt_BR |
dc.contributor.author | Corte-Real, João Alexandre Medina | pt_BR |
dc.contributor.author | Gallas, Jason Alfredo Carlson | pt_BR |
dc.date.accessioned | 2014-08-19T02:10:24Z | pt_BR |
dc.date.issued | 2002 | pt_BR |
dc.identifier.issn | 1539-3755 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/101355 | pt_BR |
dc.description.abstract | We introduce a simple model to investigate large scale behavior of gradient flows based on a lattice of coupled maps which, in addition to the usual diffusive term, incorporates advection, as an asymmetry in the coupling between nearest neighbors. This diffusive-advective model predicts traveling patterns to have velocities obeying the same scaling as wind velocities in the atmosphere, regarding the advective parameter as a sort of geostrophic wind. In addition, the velocity and wavelength of traveling wave solutions are studied. In general, due to the presence of advection, two regimes are identified: for strong diffusion the velocity varies linearly with advection, while for weak diffusion a power law is found with a characteristic exponent proportional to the diffusion. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 66, no. 1 (July 2002), 016219, 6 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Dinâmica dos fluidos computacional | pt_BR |
dc.subject | Teoria de redes | pt_BR |
dc.subject | Sistemas dinâmicos não-lineares | pt_BR |
dc.subject | Velocidade | pt_BR |
dc.title | Modeling velocity in gradient flows with coupled-map lattices with advection | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000325957 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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