Smectic film convection: A tempest in a soap bubble

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• Stephen Morris, INI
• Monday 30 January 2006, 13:00-14:00
• MR4, DAMTP.

If you have a question about this talk, please contact Paul Metcalfe.

Smectic liquid crystals are slimy organic liquids that form submicron thick suspended films, rather like soap bubbles. These films are nearly perfect two-dimensional liquids, with uniform thickness down to the molecular scale. I will describe fluid mechanical convection experiments carried out in smectic films which are forced electrically. With gentle forcing and an applied shear, we can produce a pattern of vortices that exhibits interesting nonlinear dynamics. With strong forcing, we can study the scaling behaviour of turbulent convection.

This talk is part of the Monday Mechanics Seminars (DAMTP) series.

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