The University of Southampton
University of Southampton Institutional Repository

Three-dimensional direct numerical simulation of surface-tension-gradient effects on the leveling of an evaporating multicomponent fluid

Eres, M.H., Weidner, D.E. and Schwartz, L.W. (1999) Three-dimensional direct numerical simulation of surface-tension-gradient effects on the leveling of an evaporating multicomponent fluid Langmuir, 15, (5), pp. 1859-1871. (doi:10.1021/la980414u).

Record type: Article

Abstract

Mathematical and numerical modeling of drying coating layers is of interest to both industrial and academic communities. Compositional changes that occur during the drying process make the implementation of practical and efficient numerical models rather difficult. In this paper we present a three-dimensional mathematical and numerical model based on the lubrication approximation for the flow of drying paint films on horizontal substrates. The paint is modeled as a multicomponent liquid with one nonvolatile and one volatile component, termed the "resin" and the "solvent" respectively. Our model includes the effects of surface tension and gravitational forces as well as surface tension gradient effects which arise due to solvent evaporation. The dependence of viscosity, diffusivity, and evaporation rate on resin concentration is also incorporated in the model. A closed-form Linearized solution has been found for coating layers that are of almost uniform thickness. The numerical solution agrees closely with the linear solution in the appropriate Limit. A model simulation demonstrates the effect of surface tension gradients due to compositional changes in a three-dimensional flow field, and we suggest methods by which these gradients may be used to obtain a more uniform final coating layer.

Full text not available from this repository.

More information

Published date: 2 March 1999

Identifiers

Local EPrints ID: 46402
URI: http://eprints.soton.ac.uk/id/eprint/46402
ISSN: 0743-7463
PURE UUID: 93f17a29-2ce3-4446-ba67-416c4da01ade

Catalogue record

Date deposited: 27 Jun 2007
Last modified: 17 Jul 2017 15:07

Export record

Altmetrics

Contributors

Author: M.H. Eres
Author: D.E. Weidner
Author: L.W. Schwartz

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×