Sendiña Nadal, IreneGómez-Gesteira, MonchoPérez Muñuzuri, VicentePérez Villar, VicenteArmero Rovira, JuanRamírez Piscina, LaureanoCasademunt i Viader, JaumeSagués i Mestre, FrancescSancho, José M.2011-07-072011-07-0719971539-3755https://hdl.handle.net/2445/18732The propagation of an initially planar front is studied within the framework of the photosensitive Belousov-Zhabotinsky reaction modulated by a smooth spatial variation of the local front velocity in the direction perpendicular to front propagation. Under this modulation, the wave front develops several fingers corresponding to the local maxima of the modulation function. After a transient, the wave front achieves a stationary shape that does not necessarily coincide with the one externally imposed by the modulation. Theoretical predictions for the selection criteria of fingers and steady-state velocity are experimentally validated.4 p.application/pdfeng(c) The American Physical Society, 1997Teoria quànticaTeoria quàntica de campsRelativitat especial (Física)Física estadísticaTermodinàmicaSistemes dinàmics diferenciablesQuantum theoryQuantum field theorySpecial relativity (Physics)Statistical physicsThermodynamicsDifferentiable dynamical systemsinfo:eu-repo/semantics/article120637info:eu-repo/semantics/openAccess