Fluctuations in fluid invasion into disordered media
Disordered Systems and Neural Networks
2009-11-11 v1 Materials Science
Statistical Mechanics
Abstract
Interfaces moving in a disordered medium exhibit stochastic velocity fluctuations obeying universal scaling relations related to the presence or absence of conservation laws. For fluid invasion of porous media, we show that the fluctuations of the velocity are governed by a geometry-dependent length scale arising from fluid conservation. This result is compared to the statistics resulting from a non-equilibrium (depinning) transition between a moving interface and a stationary, pinned one.
Cite
@article{arxiv.cond-mat/0612294,
title = {Fluctuations in fluid invasion into disordered media},
author = {Martin Rost and Lasse Laurson and Martin Dube and Mikko Alava},
journal= {arXiv preprint arXiv:cond-mat/0612294},
year = {2009}
}
Comments
4 pages, 4 figures