The transition to aeration in turbulent two-phase mixing in stirred vessels
DC Field | Value | Language |
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dc.contributor.author | Kahouadji, L. | - |
dc.contributor.author | Liang, F. | - |
dc.contributor.author | Valdes, J.P. | - |
dc.contributor.author | Shin, S. | - |
dc.contributor.author | Chergui, J. | - |
dc.contributor.author | Juric, D. | - |
dc.contributor.author | Craster, R.V. | - |
dc.contributor.author | Matar, O.K. | - |
dc.date.accessioned | 2022-11-29T02:40:12Z | - |
dc.date.available | 2022-11-29T02:40:12Z | - |
dc.date.created | 2022-11-29 | - |
dc.date.issued | 2022-10-21 | - |
dc.identifier.issn | 2633-4259 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/30598 | - |
dc.description.abstract | We consider the mixing dynamics of an air-liquid system driven by the rotation of a pitched blade turbine (PBT) inside an open, cylindrical tank. To examine the flow and interfacial dynamics, we use a highly parallelised implementation of a hybrid front-tracking/level-set method that employs a domain-decomposition parallelisation strategy. Our numerical technique is designed to capture faithfully complex interfacial deformation, and changes of topology, including interface rupture and dispersed phase coalescence. As shown via transient, a three-dimensional (3-D) LES (large eddy simulation) using a Smagorinsky-Lilly turbulence model, the impeller induces the formation of primary vortices that arise in many idealised rotating flows as well as several secondary vortical structures resembling Kelvin-Helmholtz, vortex breakdown, blade tip vortices and end-wall corner vortices. As the rotation rate increases, a transition to 'aeration' is observed when the interface reaches the rotating blades leading to the entrainment of air bubbles into the viscous fluid and the creation of a bubbly, rotating, free surface flow. The mechanisms underlying the aeration transition are probed as are the routes leading to it, which are shown to exhibit a strong dependence on flow history. © | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Cambridge University Press | - |
dc.title | The transition to aeration in turbulent two-phase mixing in stirred vessels | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shin, S. | - |
dc.identifier.doi | 10.1017/flo.2022.24 | - |
dc.identifier.scopusid | 2-s2.0-85142131485 | - |
dc.identifier.wosid | 001037299700001 | - |
dc.identifier.bibliographicCitation | Flow, v.2 | - |
dc.relation.isPartOf | Flow | - |
dc.citation.title | Flow | - |
dc.citation.volume | 2 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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 | NUMERICAL-SIMULATION | - |
dc.subject.keywordPlus | VORTEX BREAKDOWN | - |
dc.subject.keywordPlus | FLOW | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | TRACKING | - |
dc.subject.keywordPlus | FLUID | - |
dc.subject.keywordAuthor | Aeration | - |
dc.subject.keywordAuthor | Fast-moving consumer goods | - |
dc.subject.keywordAuthor | Multiphase mixing | - |
dc.subject.keywordAuthor | Stirred vessels | - |
dc.subject.keywordAuthor | Turbulence | - |
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