Shkoller Paper

Modeling the cusp formation of a rising bubble in a liquid crystal



STEVE SHKOLLER
Department of Mathematics
University of California at Davis
Davis, CA 95616, USA
http://www.math.ucdavis.edu/
shkoller@math.ucdavis.edu



Abstract:  We model the cusp formation on the boundary of an air bubble rising inside a complex (non-Newtonian) fluid such as a liquid crystal. We derive a model in which the surface tension of the bubble competes with molecular alignment forces of the complex fluid and eventually loses. The problem requires modeling the interface of the bubble, and we use level set methods which are coupled with the and Ericksen-Leslie model for liquid crystals. After discussing the model, we shall present a simple proof of global-wellposedness of the Ericksen-Leslie liquid crystal model on a Riemannian manifold.



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