Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/18746
Title: | Influence of disorder strength on phase-field models of interfacial growth |
Author: | Laurila, Tomi Pradas Gené, Marc Hernández Machado, Aurora Ala-Nissilä, Tapio |
Keywords: | Dinàmica de fluids Mecànica dels medis continus Fluid dynamics Continuum mechanics |
Issue Date: | 2008 |
Publisher: | The American Physical Society |
Abstract: | We study the influence of disorder strength on the interface roughening process in a phase-field model with locally conserved dynamics. We consider two cases where the mobility coefficient multiplying the locally conserved current is either constant throughout the system (the two-sided model) or becomes zero in the phase into which the interface advances (one-sided model). In the limit of weak disorder, both models are completely equivalent and can reproduce the physical process of a fluid diffusively invading a porous media, where super-rough scaling of the interface fluctuations occurs. On the other hand, increasing disorder causes the scaling properties to change to intrinsic anomalous scaling. In the limit of strong disorder this behavior prevails for the one-sided model, whereas for the two-sided case, nucleation of domains in front of the invading front are observed. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.78.031603 |
It is part of: | Physical Review E, 2008, vol. 78, p. 031603-1-031603-7 |
URI: | https://hdl.handle.net/2445/18746 |
Related resource: | http://dx.doi.org/10.1103/PhysRevE.78.031603 |
ISSN: | 1063-651X |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
561769.pdf | 2.55 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.