title: Dynamics of A + B --> C reaction fronts in the presence of buoyancy-driven convection.
abstract: The dynamics of A+B-->C fronts in horizontal solution layers can be influenced by buoyancy-driven convection as soon as the densities of A, B, and C are not all identical. Such convective motions can lead to front propagation even in the case of equal diffusion coefficients and initial concentration of reactants for which reaction-diffusion (RD) scalings predict a nonmoving front. We show theoretically that the dynamics in the presence of convection can in that case be predicted solely on the basis of the knowledge of the one-dimensional RD density profile across the front.
authors.affiliation: Nonlinear Physical Chemistry Unit, CP 231, Faculté des Sciences, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium.
authors.forename: L
authors.initials: L
authors.lastname: Rongy
authors.forename: P M J
authors.initials: PM
authors.lastname: Trevelyan
authors.forename: A
authors.initials: A
authors.lastname: De Wit