Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/16012

Title: Sedimentation of a two-dimensional colloidal mixture exhibiting liquid-liquid and gas-liquid phase separation: a dynamical density functional theory study
Authors: Malijevsky, Alexandr
Archer, Andrew J.
Issue Date: 2013
Publisher: © AIP Publishing
Citation: MALIJEVSKY, A. and ARCHER, A.J., 2013. Sedimentation of a two-dimensional colloidal mixture exhibiting liquid-liquid and gas-liquid phase separation: a dynamical density functional theory study. Journal of Chemical Physics, 139 (14), 144901.
Abstract: We present dynamical density functional theory results for the time evolution of the density distribution of a sedimenting model two-dimensional binary mixture of colloids. The interplay between the bulk phase behaviour of the mixture, its interfacial properties at the confining walls, and the gravitational field gives rise to a rich variety of equilibrium and non-equilibrium morphologies. In the fluid state, the system exhibits both liquid-liquid and gas-liquid phase separation. As the system sediments, the phase separation significantly affects the dynamics and we explore situations where the final state is a coexistence of up to three different phases. Solving the dynamical equations in two-dimensions, we find that in certain situations the final density profiles of the two species have a symmetry that is different from that of the external potentials, which is perhaps surprising, given the statistical mechanics origin of the theory. The paper concludes with a discussion on this.
Description: Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Chemical Physics, 2013, 139 (14), 144901 and may be found at: http://dx.doi.org/10.1063/1.4823768
Sponsor: A.M. acknowledges support from the Czech Science Foundation, Project No. 13-09914S.
Version: Published
DOI: 10.1063/1.4823768
URI: https://dspace.lboro.ac.uk/2134/16012
Publisher Link: http://dx.doi.org/10.1063/1.4823768
ISSN: 0021-9606
Appears in Collections:Published Articles (Maths)

Files associated with this item:

File Description SizeFormat
1.4823768.pdfPublished version3.18 MBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.