Image:Reaction diffusion stationary ds.gif

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Image:Reaction diffusion stationary ds.gif

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[edit] Summary

Stationary dissipative soliton (numerical calculation) in a two-component reaction-diffusion system of Fitzhugh-Nagumo type, produced by Dr. H. U. Bödeker.

The system reads

$\begin{array}{rl} \partial_t u &= d_u^2 \Delta u + \lambda u -u^3 - \sigma v + \kappa,\\ \tau \partial_t v &= d_v^2 \Delta v + u - v \end{array}$

with λ = 4.67, σ = 3.33, τ = 0.1, d_u² = 0.004, d_v² = 0.01, κ = - 1.

The solution was found by starting with a Gaussian initial distribution in u and calculating the temporal evolution with a finite-element algorithm.

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	Date/Time	Dimensions	User	Comment
current	09:57, 6 July 2007	265×235 (23 KB)	Huboedeker (Talk \| contribs)	(Stationary dissipative soliton (numerical calculation) in a two-component reaction-diffusion system of Fitzhugh-Nagumo type, produced by Dr. H. U. Bödeker.)