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 le...

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Bibliographic Details
Published in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2009-01, Vol.79 (1 Pt 2), p.016216-016216, Article 016216
Main Authors: Schuszter, Gábor, Tóth, Tamara, Horváth, Dezso, Tóth, Agota
Format: Article
Language:English
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Summary: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.
ISSN:1539-3755
1550-2376
DOI:10.1103/PhysRevE.79.016216