Pattern of Reaction Diffusion Fronts in Laminar Flows
- 27 March 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 90 (12) , 128302
- https://doi.org/10.1103/physrevlett.90.128302
Abstract
Autocatalytic reaction between reacted and unreacted species may propagate as solitary waves, namely, at a constant front velocity and with a stationary concentration profile, resulting from a balance between molecular diffusion and chemical reaction. The effect of advective flow on the autocatalytic reaction between iodate and arsenous acid in cylindrical tubes and Hele-Shaw cells is analyzed experimentally and numerically using lattice Bhatnagar-Gross-Krook simulations. We do observe the existence of solitary waves with concentration profiles exhibiting a cusp and we delineate the eikonal and mixing regimes recently predicted.Keywords
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This publication has 13 references indexed in Scilit:
- Poiseuille Advection of Chemical Reaction FrontsPhysical Review Letters, 2002
- Buoyancy-driven instability of an autocatalytic reaction front in a Hele-Shaw cellPhysical Review E, 2002
- Front propagation in laminar flowsPhysical Review E, 2001
- Front propagation into unstable states: universal algebraic convergence towards uniformly translating pulled frontsPhysica D: Nonlinear Phenomena, 2000
- Growth Rates of the Buoyancy-Driven Instability of an Autocatalytic Reaction Front in a Narrow CellPhysical Review Letters, 2000
- Viscous parallel flows in finite aspect ratio Hele-Shaw cell: Analytical and numerical resultsPhysics of Fluids, 1997
- Miscible displacement between two parallel plates: BGK lattice gas simulationsJournal of Fluid Mechanics, 1997
- Particle Tracking in a Laminar Premixed FlamePhysics of Fluids A: Fluid Dynamics, 1990
- Detailed studies of propagating fronts in the iodate oxidation of arsenous acidJournal of the American Chemical Society, 1982
- Dispersion of soluble matter in solvent flowing slowly through a tubeProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1953