2026-04-13T22:08:26Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/187752025-11-19T20:33:53Zcom_2072_1057col_2072_478796col_2072_478823col_2072_478917

Lifetime enhancement of scroll rings by spatiotemporal fluctuations Pérez Muñuzuri, Vicente Sagués i Mestre, Francesc Sancho, José M. Dinàmica de fluids Química física Fluid dynamics Physical chemistry The dynamics of three-dimensional scroll rings with spatiotemporal random excitability is investigated numerically using the FitzHugh-Nagumo model. Depending on the correlation time and length scales of the fluctuations, the lifetime of the ring filament is enlarged and a resonance effect between the time scale of the scroll ring and the time correlation of the noise is observed. Numerical results are interpreted in terms of a simplified stochastic model derived from the kinematical equations for three-dimensional excitable waves. 2011-07-07T12:52:23Z 2011-07-07T12:52:23Z 2000 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1539-3755 https://hdl.handle.net/2445/18775 170365 eng Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.62.94 Physical Review E, 2000, vol. 62, núm. 1, p. 94-99 http://dx.doi.org/10.1103/PhysRevE.62.94 (c) American Physical Society, 2000 info:eu-repo/semantics/openAccess 6 p. application/pdf application/pdf The American Physical Society Articles publicats en revistes (Física Quàntica i Astrofísica)