TU Darmstadt / ULB / TUbiblio

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

Wacławczyk, Marta and 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
[Article] , (2011)

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

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.

Item Type: Article
Erschienen: 2011
Creators: Wacławczyk, Marta and Oberlack, Martin
Title: Invariant closure proposals for the interface tracking in two-phase turbulent flows
Language: English
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.

Journal or Publication Title: Journal of Physics: Conference Series
Volume: 318
Number: 4
Publisher: Institute of Physics
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Fluid Dynamics (fdy)
Exzellenzinitiative
Exzellenzinitiative > Clusters of Excellence
Zentrale Einrichtungen
Exzellenzinitiative > Clusters of Excellence > Center of Smart Interfaces (CSI)
Date Deposited: 06 Jan 2012 07:29
Official URL: http://stacks.iop.org/1742-6596/318/i=4/a=042025
Additional Information:

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

Identification Number: doi:10.1088/1742-6596/318/4/042025
Export:

Optionen (nur für Redakteure)

View Item View Item