A comparison study of the Boussinesq and the variable density models on buoyancy-driven flows
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hyun Geun | - |
dc.contributor.author | Kim, Junseok | - |
dc.date.accessioned | 2021-09-06T17:28:58Z | - |
dc.date.available | 2021-09-06T17:28:58Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-08 | - |
dc.identifier.issn | 0022-0833 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107888 | - |
dc.description.abstract | When density variations are sufficiently small the Boussinesq approximation is valid. The approximation is introduced to reduce the degree of the complexity of density variations and implies that density effects are considered only in the buoyancy force term of the momentum equation. Because of its simplicity in practical implementations, the approximation is widely used. Although there are many studies related to the approximation, some important characteristics are still missing. In this article, we compare the Boussinesq approximation and variable density models for the two-dimensional (2D) Rayleigh-Taylor instability with a phase-field method. Numerical experiments indicate that for an initially symmetric perturbation of the interface the symmetry of the heavy and light fronts for the Boussinesq model can be seen for a long time. However, for the variable density model, the symmetry is lost although the flow starts symmetrically. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER | - |
dc.subject | RAYLEIGH-TAYLOR INSTABILITY | - |
dc.subject | PHASE-FIELD MODEL | - |
dc.subject | TENSION FORCE FORMULATION | - |
dc.subject | FRONT-TRACKING ALGORITHM | - |
dc.subject | DIFFUSE-INTERFACE MODEL | - |
dc.subject | 2-PHASE FLOWS | - |
dc.subject | IMMISCIBLE-FLUID | - |
dc.subject | VOLUME | - |
dc.subject | SIMULATION | - |
dc.subject | DYNAMICS | - |
dc.title | A comparison study of the Boussinesq and the variable density models on buoyancy-driven flows | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Junseok | - |
dc.identifier.doi | 10.1007/s10665-011-9504-2 | - |
dc.identifier.scopusid | 2-s2.0-84863083818 | - |
dc.identifier.wosid | 000305804500002 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ENGINEERING MATHEMATICS, v.75, no.1, pp.15 - 27 | - |
dc.relation.isPartOf | JOURNAL OF ENGINEERING MATHEMATICS | - |
dc.citation.title | JOURNAL OF ENGINEERING MATHEMATICS | - |
dc.citation.volume | 75 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 15 | - |
dc.citation.endPage | 27 | - |
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.keywordPlus | RAYLEIGH-TAYLOR INSTABILITY | - |
dc.subject.keywordPlus | PHASE-FIELD MODEL | - |
dc.subject.keywordPlus | TENSION FORCE FORMULATION | - |
dc.subject.keywordPlus | FRONT-TRACKING ALGORITHM | - |
dc.subject.keywordPlus | DIFFUSE-INTERFACE MODEL | - |
dc.subject.keywordPlus | 2-PHASE FLOWS | - |
dc.subject.keywordPlus | IMMISCIBLE-FLUID | - |
dc.subject.keywordPlus | VOLUME | - |
dc.subject.keywordPlus | SIMULATION | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordAuthor | Boussinesq approximation model | - |
dc.subject.keywordAuthor | Phase-field method | - |
dc.subject.keywordAuthor | Projection method | - |
dc.subject.keywordAuthor | Rayleigh-Taylor instability | - |
dc.subject.keywordAuthor | Variable density model | - |
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.