Thermal convection and emergence of isolated vortices in soap bubbles.
A novel thermal convection cell consisting of half a soap bubble heated at the equator is introduced to study thermal convection and the movement of isolated vortices. The soap bubble, subject to stratification, develops thermal convection at its equator. A particular feature of this cell is the emergence of isolated vortices. These vortices resemble hurricanes or cyclones and similarities between our observed structures and these natural objects are found. This is brought forth through a study of the mean square displacement of these objects showing signs of superdiffusion.
Université Bordeaux1, CPMOH UMR 5798 du CNRS, 351 cours de la Libération, 33405 Talence France.
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Seychelles
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Amarouchene
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Bessafi
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Kellay