Physical Review E
American Physical Society
We present a theory for the transition from nonaxisymmetric to axisymmetric convection in iodate-arsenous acid reaction fronts propagating in a vertical slab. The transition takes place away from the onset of convection, where a convectionless flat front becomes unstable to a nonaxisymmetric convective front. The transition is studied by numerically solving a reaction-diffusion equation coupled with nonlinear hydrodynamics in a two-dimensional slab.
Transitions between convective patterns in chemical fronts, Y. Wu,D. A. Vasquez, B. F. Edwards, and J. W. Wilder, Phys. Rev. E 52, 6175(1995) .