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DPG

Regensburg 2007 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 24: Poster I

DY 24.55: Poster

Mittwoch, 28. März 2007, 16:00–18:00, Poster D

Phase field simulations for drops and bubbles — •Rodica Borcia and Michael Bestehorn — Lehrstuhl Statistische Physik/ Nichtlineare Dynamik, Brandenburgische Technische Universität Cottbus, Erich-Weinert-Straβe 1, 03046, Cottbus, Germany

Recently we proposed a phase field model to describe Marangoni convection in a compressible fluid of van der Waals type far from criticality [Eur. Phys. J. B 44 (2005), 101]. The model previously developed for a two-layer geometry is now extended to drops and bubbles. A randomly distributed initial density evolves towards drops in a vapor atmosphere or bubbles in a liquid, depending on the total mass. Finally, as applications, we report on numerical simulations for drop Marangoni migration in a temperature gradient and for drop spreading on a solid surface.

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