University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Effect of the contact angle on the morphology, residence time distribution and mass transfer into liquid rivulets: A CFD study

Sebastia Saez, Daniel, Gu, Sai and Ramaioli, Marco (2017) Effect of the contact angle on the morphology, residence time distribution and mass transfer into liquid rivulets: A CFD study Chemical Engineering Science, 176. pp. 356-366.

[img]
Preview
Text
1-s2.0-S0009250917306000-main.pdf - Version of Record
Available under License Creative Commons Attribution.

Download (2MB) | Preview
[img] Text
elsarticle-template.pdf - Accepted version Manuscript
Restricted to Repository staff only

Download (5MB)

Abstract

Droplets and rivulets over solid surfaces play an important role in a number of engineering applications. We use a Computational Fluid Dynamics model consisting in a smooth inclined plate to study the effect of the contact angle on the morphology, residence time and mass transfer into liquid rivulets. Measurements of the contact angle—using the sessile drop method—between aqueous monoethanolamine solutions and two commercial surfaces used for gas separation, are introduced as boundary condition. Reducing the contact angle from 60° to 20° flattens the rivulet, increasing the gas-liquid interface area by 85%. The cumulative residence time broadens, with an increase of 12% in τ10, and of 37% in τ90. There is consequently, a theoretical increase of 68% in the total mass transfer rate. A sensible design of the liquid-solid interaction is therefore crucial to good mass transfer performance.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Sebastia Saez, Danielj.sebastiasaez@surrey.ac.uk
Gu, Saisai.gu@surrey.ac.uk
Ramaioli, Marcom.ramaioli@surrey.ac.uk
Date : 27 October 2017
Funders : Engineering and Physical Sciences Research Council (EPSRC)
Identification Number : 10.1016/j.ces.2017.09.046
Copyright Disclaimer : Copyright 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords : rivulet flow; wetting; contact angle; CFD; residence time; sessile drop
Depositing User : Melanie Hughes
Date Deposited : 27 Sep 2017 11:15
Last Modified : 27 Mar 2018 13:14
URI: http://epubs.surrey.ac.uk/id/eprint/842410

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800