Smuda, Martin ; Kummer, Florian (2021)
The extended discontinuous Galerkin method adapted for moving contact line problems via the generalized Navier boundary condition.
In: International Journal for Numerical Methods in Fluids, 93 (9)
doi: 10.1002/fld.5016
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this work, an extended discontinuous Galerkin (extended DG/XDG also called unfitted DG) solver for two-dimensional flow problems exhibiting moving contact lines is presented. The generalized Navier boundary condition is employed within the XDG discretization for the handling of the moving contact lines. The spatial discretization is based on a symmetric interior penalty method and the numerical treatment of the surface tension force is done via the Laplace–Beltrami formulation. The XDG method adapts the approximation space conformal to the position of the interface and allows a sub-cell accurate representation within the sharp interface formulation. The interface is described as the zero set of a signed-distance level-set function and discretized by a standard DG method. No adaption of the level-set evolution algorithm is needed for the extension to moving contact line problems. The developed solver is validated against typical two-dimensional contact line driven flow phenomena including droplet simulations on a wall and the two-phase Couette flow.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Smuda, Martin ; Kummer, Florian |
| Art des Eintrags: | Bibliographie |
| Titel: | The extended discontinuous Galerkin method adapted for moving contact line problems via the generalized Navier boundary condition |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | International Journal for Numerical Methods in Fluids |
| Jahrgang/Volume einer Zeitschrift: | 93 |
| (Heft-)Nummer: | 9 |
| DOI: | 10.1002/fld.5016 |
| Kurzbeschreibung (Abstract): | In this work, an extended discontinuous Galerkin (extended DG/XDG also called unfitted DG) solver for two-dimensional flow problems exhibiting moving contact lines is presented. The generalized Navier boundary condition is employed within the XDG discretization for the handling of the moving contact lines. The spatial discretization is based on a symmetric interior penalty method and the numerical treatment of the surface tension force is done via the Laplace–Beltrami formulation. The XDG method adapts the approximation space conformal to the position of the interface and allows a sub-cell accurate representation within the sharp interface formulation. The interface is described as the zero set of a signed-distance level-set function and discretized by a standard DG method. No adaption of the level-set evolution algorithm is needed for the extension to moving contact line problems. The developed solver is validated against typical two-dimensional contact line driven flow phenomena including droplet simulations on a wall and the two-phase Couette flow. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy) DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen > Projektbereich B: Modellierung und Simulation DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen > Projektbereich B: Modellierung und Simulation > B06: Verfahren höherer Ordnung für die direkte numerische Simulation von Be- und Entnetzungsproblemen auf Basis der Discontinuous Galerkin Methode Exzellenzinitiative Exzellenzinitiative > Graduiertenschulen Exzellenzinitiative > Graduiertenschulen > Graduate School of Computational Engineering (CE) |
| Hinterlegungsdatum: | 04 Dez 2023 08:14 |
| Letzte Änderung: | 04 Dez 2023 08:14 |
| PPN: | 513630007 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum