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Numerical study of three-dimensional droplet impact on a flowing liquid film in annular two-phase flow

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Title: Numerical study of three-dimensional droplet impact on a flowing liquid film in annular two-phase flow
Authors: Xie, Z
Hewitt, G
Pavlidis, D
Salinas, P
Pain, C
Matar, O
Item Type: Journal Article
Abstract: Annular flow with liquid entrainment occurs in a wide variety of two-phase flow system. A novel control volume finite element method with adaptive unstructured meshes is employed here to study three-dimensional droplet deposition process in annular two-phase flow. The numerical framework consists of a ‘volume of fluid’ type method for the interface capturing and a force-balanced continuum surface force model for the surface tension on adaptive unstructured meshes. The numerical framework is validated against experimental measurements of a droplet impact problem and is then used to study the droplet deposition onto a flowing liquid film at atmospheric and high pressure conditions. Detailed complex interfacial structures during droplet impact are captured during the simulation, which agree with the experimental observations, demonstrating the capability of the present method. It is found that the effect of the ambient pressure on the fluid properties and interfacial tension plays an important role in the droplet deposition process and the associated interfacial phenomena.
Issue Date: 20-Jul-2017
Date of Acceptance: 8-Apr-2017
URI: http://hdl.handle.net/10044/1/47992
DOI: 10.1016/j.ces.2017.04.015
ISSN: 0009-2509
Publisher: Elsevier
Start Page: 303
End Page: 312
Journal / Book Title: Chemical Engineering Science
Volume: 166
Issue: 1
Copyright Statement: © 2017 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Commission of the European Communities
Engineering & Physical Science Research Council (E
Funder's Grant Number: EP/K003976/1
Keywords: Science & Technology
Engineering, Chemical
Adaptive unstructured mesh
Droplet impact
Liquid film
Numerical simulation
Two-phase flow
Chemical Engineering
0904 Chemical Engineering
0913 Mechanical Engineering
0914 Resources Engineering and Extractive Metallurgy
Publication Status: Published
Online Publication Date: 2017-04-13
Appears in Collections:Earth Science and Engineering
Chemical Engineering
Faculty of Natural Sciences
Faculty of Engineering