Convective instabilities in horizontally propagating vertical chemical fronts.
The effect of convection on horizontally propagating fronts arising in the acid-catalyzed reaction of chlorite and tetrathionate ions is investigated experimentally in vertically oriented narrow reaction vessels of various heights. A stable finger develops which can be characterized by its mixing length defined as the standard deviation of the average front profile. The mixing length scales with the height of the reaction vessel, and the scaling law has been determined for three different chemical compositions.
Schuszter
Gábor
G
Department of Physical Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary.
Tóth
Tamara
T
Horváth
Dezso
D
Tóth
Agota
A