Droplet bounce simulations and air pressure effects on the deformation of pre-impact droplets, using a boundary element method
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Hongbok | - |
dc.contributor.author | Yoon, Sam S. | - |
dc.contributor.author | Jepsenc, Richard A. | - |
dc.contributor.author | Helster, Stephen D. | - |
dc.contributor.author | Kim, Ho Y. | - |
dc.date.accessioned | 2021-09-09T12:56:13Z | - |
dc.date.available | 2021-09-09T12:56:13Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2008-01 | - |
dc.identifier.issn | 0955-7997 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/124487 | - |
dc.description.abstract | An inviscid axisymmetric model capable of predicting both droplet bounce and the detailed pre-impact motion that is influenced by ambient pressure has been developed using a boundary element method (BEM). Previous simulations could not accurately describe the effect of the gas compressed between a falling droplet and the impacting substrate because most droplet impact simulations assumed that the droplet was already in contact with the impacting substrate at the beginning of the simulation. To properly account for the surrounding gas, the simulation must begin when the droplet is released from a certain height. High pressures are Computed in the gas phase in the region between the droplet and the impact surface at instances just prior to impact. This simulation shows that the droplet retains its spherical shape when the surface tension energy is dominant over the dissipative energy. When the Weber number is increased, the droplet's Surface structure is highly deformed due to the presence of capillary waves and, consequently, a pyramidal surface structure is formed. This phenomenon was verified experimentally. Parametric studies using our model include the pre-impact behavior that varies as a function of the Weber number and the surrounding gas pressure. (C) 2007 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Droplet bounce simulations and air pressure effects on the deformation of pre-impact droplets, using a boundary element method | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yoon, Sam S. | - |
dc.contributor.affiliatedAuthor | Kim, Ho Y. | - |
dc.identifier.doi | 10.1016/j.enganabound.2007.07.002 | - |
dc.identifier.scopusid | 2-s2.0-36148966571 | - |
dc.identifier.wosid | 000252916700003 | - |
dc.identifier.bibliographicCitation | ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, v.32, no.1, pp.21 - 31 | - |
dc.relation.isPartOf | ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | - |
dc.citation.title | ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | - |
dc.citation.volume | 32 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 21 | - |
dc.citation.endPage | 31 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mathematics | - |
dc.relation.journalWebOfScienceCategory | Engineering, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Mathematics, Interdisciplinary Applications | - |
dc.subject.keywordAuthor | droplet impact | - |
dc.subject.keywordAuthor | compressed gas | - |
dc.subject.keywordAuthor | splashing | - |
dc.subject.keywordAuthor | two-phase flow | - |
dc.subject.keywordAuthor | bouncing droplet | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea 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.