Superdiffusive wave front propagation in a chemical active flow

Autor: Vicente Pérez-Muñuzuri, G. Fernández-García
Rok vydání: 2008
Předmět:
Zdroj: The European Physical Journal Special Topics. 165:169-174
ISSN: 1951-6401
1951-6355
DOI: 10.1140/epjst/e2008-00860-2
Popis: We present experiments on the propagation of a wave front in a fluid forced by Faraday waves. The vertical periodical modulation of the acceleration induces flows in the system that modifies the Belousov-Zhabotinsky (BZ) chemical reaction dynamics. Phase waves spreading through standing waves with different symmetries results in superdiffusion. The anomalous diffusion is characterized in terms of a non-integer transport exponent which is compared with exponents resulting from tracer particles trajectories undergoing rapid, distant jumps called Levy flights.
Databáze: OpenAIRE