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dc.contributor.authorVachaparambil, Kurian J.
dc.contributor.authorEinarsrud, Kristian Etienne
dc.date.accessioned2019-11-19T09:40:22Z
dc.date.available2019-11-19T09:40:22Z
dc.date.created2019-11-17T22:43:18Z
dc.date.issued2019
dc.identifier.issn2227-9717
dc.identifier.urihttp://hdl.handle.net/11250/2629225
dc.description.abstractWith the increasing use of Computational Fluid Dynamics to investigate multiphase flow scenarios, modelling surface tension effects has been a topic of active research. A well known associated problem is the generation of spurious velocities (or currents), arising due to inaccuracies in calculations of the surface tension force. These spurious currents cause nonphysical flows which can adversely affect the predictive capability of these simulations. In this paper, we implement the Continuum Surface Force (CSF), Smoothed CSF and Sharp Surface Force (SSF) models in OpenFOAM. The models were validated for various multiphase flow scenarios for Capillary numbers of 10 −3 –10. All the surface tension models provide reasonable agreement with benchmarking data for rising bubble simulations. Both CSF and SSF models successfully predicted the capillary rise between two parallel plates, but Smoothed CSF could not provide reliable results. The evolution of spurious current were studied for millimetre-sized stationary bubbles. The results shows that SSF and CSF models generate the least and most spurious currents, respectively. We also show that maximum time step, mesh resolution and the under-relaxation factor used in the simulations affect the magnitude of spurious currents.nb_NO
dc.language.isoengnb_NO
dc.publisherMDPInb_NO
dc.relation.urihttps://www.mdpi.com/2227-9717/7/8/542
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleComparison of Surface Tension Models for the Volume of Fluid Methodnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.volume7nb_NO
dc.source.journalProcessesnb_NO
dc.source.issue8nb_NO
dc.identifier.doi10.3390/pr7080542
dc.identifier.cristin1748499
dc.description.localcodec 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).nb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal