Poiseuille Advection of Chemical Reaction Fronts
- 16 August 2002
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (10) , 104501
- https://doi.org/10.1103/physrevlett.89.104501
Abstract
Poiseuille flow between parallel plates alters the shapes and velocities of chemical reaction fronts. In the narrow-gap limit, the cubic reaction-diffusion-advection equation predicts a front-velocity correction equal to the gap-averaged fluid velocity epsilon. In the singular wide-gap limit, the correction equals the midgap fluid velocity 3epsilon/2 when the flow is in the direction of propagation of the reaction front, and equals zero for adverse flow of any amplitude for which the front has a midgap cusp. Stationary fronts are possible only for adverse flow and finite gaps. Experiments are suggested.Keywords
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