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Front dynamics in the presence of spatiotemporal structured noises
1Departament d'Enginyeria Mecànica, Universitat Rovira i Virgili, Carretera Salou s/n, 43006 Tarragona, Spain. msantos@etse.urv.es
Abstract:
Front dynamics modeled by a reaction-diffusion equation are studied under the influence of spatiotemporal structured noises. An effective deterministic model is analytical derived where the noise parameters, intensity, correlation time, and correlation length appear explicitly. The different effects of these parameters are discussed for the Ginzburg-Landau and Schlögl models. We obtain an analytical expression for the front velocity as a function of the noise parameters. Numerical simulation results are in a good agreement with the theoretical predictions.