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External Fluctuations in Front Propagation
Armero Rovira, Juan; Sancho, José M.; Casademunt i Viader, Jaume; Lacasta Palacio, Ana María; Ramírez Piscina, Laureano; Sagués i Mestre, Francesc
Universitat de Barcelona
We study the effects of external noise in a one-dimensional model of front propagation. Noise is introduced through the fluctuations of a control parameter leading to a multiplicative stochastic partial differential equation. Analytical and numerical results for the front shape and velocity are presented. The linear-marginal-stability theory is found to increase its range of validity in the presence of external noise. As a consequence noise can stabilize fronts not allowed by the deterministic equation.
2010-06-26
Teoria quàntica
Dinàmica de fluids
Quantum theory
Fluid dynamics
(c) American Physical Society, 1996
Article
American Physical Society
         

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