Energetics of spreading droplets and role of capillary waves at low Weber numbers below 10
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, I. | - |
dc.contributor.author | Chergui, J. | - |
dc.contributor.author | Juric, D. | - |
dc.contributor.author | Shin, S. | - |
dc.date.accessioned | 2023-02-15T02:41:19Z | - |
dc.date.available | 2023-02-15T02:41:19Z | - |
dc.date.created | 2023-02-15 | - |
dc.date.issued | 2023-02-01 | - |
dc.identifier.issn | 1070-6631 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/30840 | - |
dc.description.abstract | In this study, we investigate the energy conversion and dissipation mechanisms of spreading droplets on a solid surface at a low Weber number regime, which neither conventional energy-balance-based theories nor empirical scaling laws can completely explain. The energetic analysis presented in this study shows that on a hydrophilic surface, the actual primary energy source driving the spreading process is the initial surface energy not the initial kinetic energy. The conventional energy-balance-based approaches are found to be valid only for the spreading process on a hydrophobic surface. Particular attention is also paid to the roles of the capillary waves. The capillary waves are found to play significant roles in all of the important flow physics, that is, the interfacial structure, the oscillatory motions and the rapid collapse of the liquid film, the onset of the viscous regime, and the energy loss mechanism. It is also shown that the energy dissipation caused by the capillary-wave-induced phenomena can be estimated to be 25%-35% and 55%-65% of the total energy loss for a hydrophilic and a hydrophobic surface, respectively, at the low Weber number regime. © 2023 Author(s). | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | American Institute of Physics Inc. | - |
dc.title | Energetics of spreading droplets and role of capillary waves at low Weber numbers below 10 | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shin, S. | - |
dc.identifier.doi | 10.1063/5.0138378 | - |
dc.identifier.scopusid | 2-s2.0-85147496779 | - |
dc.identifier.wosid | 000925870100003 | - |
dc.identifier.bibliographicCitation | Physics of Fluids, v.35, no.2 | - |
dc.relation.isPartOf | Physics of Fluids | - |
dc.citation.title | Physics of Fluids | - |
dc.citation.volume | 35 | - |
dc.citation.number | 2 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Mechanics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.relation.journalWebOfScienceCategory | Physics, Fluids & Plasmas | - |
dc.subject.keywordPlus | FRONT-TRACKING METHOD | - |
dc.subject.keywordPlus | MULTIPHASE FLOWS | - |
dc.subject.keywordPlus | LIQUID DROPLETS | - |
dc.subject.keywordPlus | IMPACT | - |
dc.subject.keywordPlus | INTERFACE | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | DROPS | - |
dc.subject.keywordPlus | COLLISION | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
94, Wausan-ro, Mapo-gu, Seoul, 04066, Korea02-320-1314
COPYRIGHT 2020 HONGIK UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.