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Closure proposals for the tracking of turbulence-agitated gas-liquid interfaces in stratified flows

Waclawczyk, Marta and Oberlack, Martin :
Closure proposals for the tracking of turbulence-agitated gas-liquid interfaces in stratified flows.
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0301932211...]
In: International Journal of Multiphase Flow, 37 pp. 967-976. ISSN 0301-9322
[Article] , (2011)

Official URL: http://www.sciencedirect.com/science/article/pii/S0301932211...

Abstract

The present work focuses on the formulation of new modelling approaches to ensemble-averaged equation for the interface tracking in stratified two-phase flow regime with separated gas and liquid layers. The model aims to represent the influence of the unresolved part of the surface. The modelling constants have been estimated based on the k-epsilon model and the empirical observations of Brocchini and Peregrine (2001a) for the air-water flows. The new modelling proposal was implemented numerically for the 1D case. Results of the simulations are presented in the paper.

Item Type: Article
Erschienen: 2011
Creators: Waclawczyk, Marta and Oberlack, Martin
Title: Closure proposals for the tracking of turbulence-agitated gas-liquid interfaces in stratified flows
Language: English
Abstract:

The present work focuses on the formulation of new modelling approaches to ensemble-averaged equation for the interface tracking in stratified two-phase flow regime with separated gas and liquid layers. The model aims to represent the influence of the unresolved part of the surface. The modelling constants have been estimated based on the k-epsilon model and the empirical observations of Brocchini and Peregrine (2001a) for the air-water flows. The new modelling proposal was implemented numerically for the 1D case. Results of the simulations are presented in the paper.

Journal or Publication Title: International Journal of Multiphase Flow
Volume: 37
Publisher: Elsevier Science
Uncontrolled Keywords: Interface tracking; Turbulence modelling
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: 24 Aug 2011 18:17
Official URL: http://www.sciencedirect.com/science/article/pii/S0301932211...
Additional Information:

DOI: 10.1016/j.ijmultiphaseflow.2011.05.006

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