@incollection{statphys23_0988,
	title = {Capillary Rise in Nanopores: Molecular Dynamics Evidence for the Lucas-Washburn Equation},
	address = {Genova, Italy},
	author = {D.I. Dimitrov and A. Milchev and K. Binder},
	booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics},
	editor = {Luciano Pietronero and Vittorio Loreto and Stefano Zapperi},
	month = {9-13 July},
	url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=988},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/2268992c81f0c024a85085ce438d68cd0/statphys23},
	abstract = {When a capillary is inserted into a liquid, the liquid will 
rapidly flow into it. This phenomenon, well studied and
 understood on the macroscale, is investigated by Molecular
 Dynamics simulations for coarse-grained models of nanotubes.
 Both a simple Lennard-Jones fluid and a model for a polymer
 melt are considered. In both cases after a transient period 
(of a few nanoseconds) the meniscus rises according to a 
square-root-of-time law. For the polymer melt, however, we find
 that the capillary flow exhibits a slip length, comparable in 
size with the nanotube radius R. We show that a consistent 
description of the imbibition process in nanotubes is only 
possible upon modification of the Lucas-Washburn law which 
takes explicitly into account the slip length. We also 
demonstrate that the velocity field of the rising fluid 
close to the interface is not a simple diffusive 
spreading.},
	keywords = {capillary dynamics equation filling lucas-washburn molecular statphys23 topic-6 }
}