Travelling waves in an ionic autocatalytic chemical system with an imposed electric field

作者: D. Snita , H. Sevcikova , M. Marek , J. H. Merkin

DOI: 10.1098/RSPA.1997.0124

关键词: Dimensionless quantityElectric fieldConstant (mathematics)Electric currentDiffusion (business)Current (fluid)ChemistryRate equationKinetic energyMechanicsClassical mechanics

摘要: The travelling waves that can develop in a chemical system which there is an ionic autocatalytic reaction, with quadratic rate law, are considered when constant (dimensionless) current I applied. equations for the discussed detail from it seen structure and propagation speed of these depend on both magnitude direction as well parameter δB, ratio diffusion coefficients autocatalyst substrate. An initial‐value problem, whereby electric switched after absence field have become fully developed, set up solved numerically, particular attention being paid to long‐time structures formed. These crucially whether δBgreater than 1 or δB less 1. For greater transition essentially kinetic front Kohlrausch electrophoretic fronts varied. 1, additional type wave where much enhanced reaction takes place.

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