Alke, A. ; Bothe, D. ; Kröger, M. ; Weigand, B. ; Weirich, Dominik ; Weking, H.
Direct numerical simulation of high Schmidt number mass transfer from air bubbles rising in liquids using the Volume-of-Fluid-Method.
In: Ercoftac Bulletin, 82
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We present a combined VOF-based approach for the direct numerical simulation of mass transfer across deformable fluidic interfaces in 3D. For this purpose and in order to resolve all relevant length scales for moderate Reynolds and Schmidt numbers in convection dominated cases, several computational techniques are employed. In particular, we build on a subgrid-scale model for the concentration boundary layer at the interface, a moving frame of reference technique, and a local mesh refinement around the bubble. Furthermore, we show a first result employing so-called artificial boundary conditions to reduce the size of the computational domain in lateral direction
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Herausgeber: | Sommerfeld, M. ; Simonin, O. |
| Autor(en): | Alke, A. ; Bothe, D. ; Kröger, M. ; Weigand, B. ; Weirich, Dominik ; Weking, H. |
| Art des Eintrags: | Bibliographie |
| Titel: | Direct numerical simulation of high Schmidt number mass transfer from air bubbles rising in liquids using the Volume-of-Fluid-Method |
| Sprache: | Englisch |
| Publikationsjahr: | 2010 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Ercoftac Bulletin |
| Jahrgang/Volume einer Zeitschrift: | 82 |
| Buchtitel: | Ercoftac Bulletin |
| Reihe: | special issue „Dispersed Multiphase Flow: From Micro- to Maco-Scale Numerical Modelling“ |
| Kurzbeschreibung (Abstract): | We present a combined VOF-based approach for the direct numerical simulation of mass transfer across deformable fluidic interfaces in 3D. For this purpose and in order to resolve all relevant length scales for moderate Reynolds and Schmidt numbers in convection dominated cases, several computational techniques are employed. In particular, we build on a subgrid-scale model for the concentration boundary layer at the interface, a moving frame of reference technique, and a local mesh refinement around the bubble. Furthermore, we show a first result employing so-called artificial boundary conditions to reduce the size of the computational domain in lateral direction |
| Fachbereich(e)/-gebiet(e): | Exzellenzinitiative Exzellenzinitiative > Exzellenzcluster Exzellenzinitiative > Graduiertenschulen Exzellenzinitiative > Graduiertenschulen > Graduate School of Computational Engineering (CE) 04 Fachbereich Mathematik 04 Fachbereich Mathematik > Analysis 04 Fachbereich Mathematik > Analysis > Mathematische Modellierung und Analysis Zentrale Einrichtungen Exzellenzinitiative > Exzellenzcluster > Center of Smart Interfaces (CSI) 04 Fachbereich Mathematik > Mathematische Modellierung und Analysis (MMA) |
| Hinterlegungsdatum: | 05 Apr 2011 12:31 |
| Letzte Änderung: | 07 Feb 2024 11:55 |
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