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Invariant closure proposals for the interface tracking in two-phase turbulent flows

Wacławczyk, Marta ; Oberlack, Martin (2011)
Invariant closure proposals for the interface tracking in two-phase turbulent flows.
In: Journal of Physics: Conference Series, 318 (4)
doi: 10.1088/1742-6596/318/4/042025
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

The present work focuses on the formulation of new modelling approaches to ensemble-averaged equations describing multiphase flows, based on the symmetries admitted by these equations. Particular attention will be given to the proper treatment of the unclosed terms in the equation for the interface tracking which represent the influence of unresolved part of the surface. Modelling of those terms is crucial in flows with heat and mass transfer. In the work, two approaches to track the interface will be considered: the level-set function and sharp-step indicator function method. The differences between the two approaches in terms of turbulence-interface interactions modelling will be outlined.

Typ des Eintrags: Artikel
Erschienen: 2011
Autor(en): Wacławczyk, Marta ; Oberlack, Martin
Art des Eintrags: Bibliographie
Titel: Invariant closure proposals for the interface tracking in two-phase turbulent flows
Sprache: Englisch
Publikationsjahr: 2011
Verlag: Institute of Physics
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Jahrgang/Volume einer Zeitschrift: 318
(Heft-)Nummer: 4
DOI: 10.1088/1742-6596/318/4/042025
URL / URN: http://stacks.iop.org/1742-6596/318/i=4/a=042025
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Kurzbeschreibung (Abstract):

The present work focuses on the formulation of new modelling approaches to ensemble-averaged equations describing multiphase flows, based on the symmetries admitted by these equations. Particular attention will be given to the proper treatment of the unclosed terms in the equation for the interface tracking which represent the influence of unresolved part of the surface. Modelling of those terms is crucial in flows with heat and mass transfer. In the work, two approaches to track the interface will be considered: the level-set function and sharp-step indicator function method. The differences between the two approaches in terms of turbulence-interface interactions modelling will be outlined.

Zusätzliche Informationen:

13th European Turbulence Conference (ETC13), Warsaw, Poland, 5th - 8th September, 2011

Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy)
Exzellenzinitiative
Exzellenzinitiative > Exzellenzcluster
Zentrale Einrichtungen
Exzellenzinitiative > Exzellenzcluster > Center of Smart Interfaces (CSI)
Hinterlegungsdatum: 06 Jan 2012 07:29
Letzte Änderung: 07 Feb 2024 06:47
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