Superdiffusive wave front propagation in a chemical active flow
Autor: | Vicente Pérez-Muñuzuri, G. Fernández-García |
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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 |
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