Dynamics of A+B→C reaction fronts in the presence of buoyancy-driven convection

被引：56

作者：

Rongy, L. ^{[1
]}

Trevelyan, P. M. J. ^{[1
]}

De Wit, A. ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Fac Sci, Nonlinear Phys Chem Unit, B-1050 Brussels, Belgium

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.101.084503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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