Front and domain growth in the presence of gravity.
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...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1993 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/2616 |
| Acceso en línea: | https://hdl.handle.net/2117/2616 https://dx.doi.org/10.1103/PhysRevB.48.9418 |
| Access Level: | acceso abierto |
| Palabra clave: | Nonlinear systems Nonlinear dynamics Phase separation Domain growth Gravity Sistemes no lineals Àrees temàtiques de la UPC::Física |
| Sumario: | 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. |
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