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| Titel |
Evolution of localized vortices in the presence of stochastic perturbations |
| VerfasserIn |
E. Bécu, V. Pavlov |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 13, no. 1 ; Nr. 13, no. 1 (2006-03-10), S.41-51 |
| Datensatznummer |
250011703
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| Publikation (Nr.) |
 copernicus.org/npg-13-41-2006.pdf |
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| Zusammenfassung |
| We consider the evolution of a distribution of N identical point
vortices when stochastic perturbations in the Hamiltonian are
present. It is shown that different initial configurations of
vorticity with identical integral invariants may exist. Using the
Runge-Kutta scheme of order 4, it is also demonstrated that
different initial configurations with the same invariants may
evolve without having any tendency to approach to a unique final,
axially symmetric, distribution. In the presence of stochastic
perturbations, if the initial distribution of vortices is not
axially symmetric, vortices can be trapped in certain domains
whose location is correlated with the configuration of the initial
vortex distribution. |
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