DUGiDocsSpeed of reaction-diffusion fronts in spatially heterogeneous media
dc.contributor.author
dc.date.accessioned
2013-04-09T14:45:18Z
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2013-04-09T14:45:18Z
dc.date.issued
2003
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1539-3755
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dc.description.abstract
The front speed problem for nonuniform reaction rate and diffusion coefficient is studied by using singular perturbation analysis, the geometric approach of Hamilton-Jacobi dynamics, and the local speed approach. Exact and perturbed expressions for the front speed are obtained in the limit of large times. For linear and fractal heterogeneities, the analytic results have been compared with numerical results exhibiting a good agreement. Finally we reach a general expression for the speed of the front in the case of smooth and weak heterogeneities
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application/pdf
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eng
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American Physical Society
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Reproducció digital del document publicat a: http://link.aps.org/doi/10.1103/PhysRevE.68.041105
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© Physical Review E, 2003, vol. 68, núm. 4, p. 041105
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Articles publicats (D-F)
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Tots els drets reservats
dc.title
Speed of reaction-diffusion fronts in spatially heterogeneous media
dc.type
info:eu-repo/semantics/article
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info:eu-repo/semantics/openAccess
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Cap
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info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
003211
dc.identifier.eissn
1550-2376