Title:
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Lifetime enhancement of scroll rings by spatiotemporal fluctuations
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Author:
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Pérez Muñuzuri, Vicente; Sagués i Mestre, Francesc; Sancho, José M.
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Dinàmica de fluids -Química física -Fluid dynamics -Physical chemistry |
Rights:
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(c) American Physical Society, 2000
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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