Nonaxisymmetric and Axisymmetric Convection in Propagating Reaction-Diffusion Fronts
Journal of Chemical Physics
American Chemical Society
Observations of steady nonaxisymmetric chemical wave fronts are reported for upward propagation in iodate-arsenous acid solutions within vertical capillary tubes. These observations confirm a recent prediction of hydrodynamic stability theory that the onset of convection in such fronts should be nonaxisymmetric. The nonaxisymmetric waveform reflects the presence of a single convective roll in the vicinity of the moving front.
"Nonaxisymmetric and axisymmetric convection in propagating reaction-diffusion fronts," J. Masere, D. A. Vasquez, B. F. Edwards, J. W. Wilder, and K. Showalter, J. Phys. Chem. 98, 6505 (1994) .