Front and domain growth in the presence of gravity.

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Title:	Front and domain growth in the presence of gravity.
Author:	Lacasta Palacio, Ana María; Hernández-Machado, Aurora; Sancho, Jose Maria
Other authors:	Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
Abstract:	Front and domain growth of a binary mixture in the presence of a gravitational field is studied. The interplay of bulk (and surface) diffusion mechanisms is analyzed. An equation for the evolution of interfaces is derived from a time-dependent Ginzburg-Landau equation with a concentration dependent diffusion coefficient. Scaling arguemnts on this equation give the exponents of a powerlaw growth. Numerical integrations of the Ginzburg-Landau equation corroborate the theoretical analysis.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Física -Nonlinear systems -Nonlinear dynamics -Phase separation -Domain growth -Gravity -Sistemes no lineals
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Document type:	Article
Published by:	American Physical Society
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