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Front propagation in spatially modulated media
Armero Rovira, Juan; Lacasta Palacio, Ana María; Ramírez Piscina, Laureano; Casademunt i Viader, Jaume; Sancho, José M.; Sagués i Mestre, Francesc
Universitat de Barcelona
A two-dimensional reaction-diffusion front which propagates in a modulated medium is studied. The modulation consists of a spatial variation of the local front velocity in the transverse direction to that of the front propagation. We study analytically and numerically the final steady-state velocity and shape of the front, resulting from a nontrivial interplay between the local curvature effects and the global competition process between different maxima of the control parameter. The transient dynamics of the process is also studied numerically and analytically by means of singular perturbation techniques.
2011-07-26
Teoria quàntica
Teoria quàntica de camps
Dinàmica de fluids
Relativitat especial (Física)
Quantum theory
Quantum field theory
Fluid dynamics
Special relativity (Physics)
(c) The American Physical Society, 1997
Article
The American Physical Society
         

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