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

Wacławczyk, Marta ; Oberlack, Martin :
Invariant closure proposals for the interface tracking in two-phase turbulent flows.
[Online-Edition: http://stacks.iop.org/1742-6596/318/i=4/a=042025]
In: Journal of Physics: Conference Series, 318 (4) 042025/1-042025/10. ISSN 1742-6588
[Artikel], (2011)

Offizielle URL: http://stacks.iop.org/1742-6596/318/i=4/a=042025

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
Titel: Invariant closure proposals for the interface tracking in two-phase turbulent flows
Sprache: Englisch
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.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Band: 318
(Heft-)Nummer: 4
Verlag: Institute of Physics
Fachbereich(e)/-gebiet(e): Fachbereich Maschinenbau > Strömungsdynamik
Fachbereich Maschinenbau
Hinterlegungsdatum: 06 Jan 2012 07:29
Offizielle URL: http://stacks.iop.org/1742-6596/318/i=4/a=042025
Zusätzliche Informationen:

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

ID-Nummer: 10.1088/1742-6596/318/4/042025
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