Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9506236 | Applied Mathematics and Computation | 2005 | 7 Pages |
Abstract
Reaction systems far from thermodynamic equilibrium can form a fascinating wealth of spatio-temporal pattern. Noise is usually thought to spoil order. In our numerical simulation, the reaction diffusion system disturbed by environmental noise can constitute a stable well-ordered spatio-temporal pattern, chemical single spiral waves in two dimensions spatial domain. It is counterintuitive that noise plays a constructive role in the production and propagation of single spiral waves in this letter. When noise intensity exceeds a threshold, it will destroy the well-ordered spatio-temporal pattern and make system uniform. Too weak or too strong noise will make against the formation and propagation of spiral waves. In a certain noise level, spiral wave can be maintained in a medium, where such spiral cannot be observed in the absence of the noise.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
WeiGuo Xu, DaiPing Hu, AiZhong Lei, Qin Shu Li,