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Superdiffusive wave front propagation in a chemical active flow

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Abstract

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 Lévy flights.

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Authors and Affiliations

  1. Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain

    G. Fernández-García & V. Pérez-Muñuzuri

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  1. G. Fernández-García
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  2. V. Pérez-Muñuzuri
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Correspondence to G. Fernández-García.

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Fernández-García, G., Pérez-Muñuzuri, V. Superdiffusive wave front propagation in a chemical active flow. Eur. Phys. J. Spec. Top. 165, 169–174 (2008). https://doi.org/10.1140/epjst/e2008-00860-2

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  • DOI: https://doi.org/10.1140/epjst/e2008-00860-2

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