A mathematical model coupling the heat and fluid flow with solidification and free surfaces is presented. The numerical method relies on an operator splitting strategy, and a two-grid method. The free surfaces are tracked with a volume-of-fluid approach. A special emphasis is laid on the modeling of surface tension forces on the free surface. A comparison between approaches is highlighted, and a mesh convergence analysis is presented. Finally, the model is validated with the simulation of a static laser melting process.
Détails
Titre
Numerical simulation of temperature-driven free surface flows, with application to laser surface melting
Auteur(s)/ trice(s)
Caboussat, Alexandre (Haute école de gestion de Genève, HES-SO Haute Ecole Spécialisée de Suisse Occidentale) Hess, Julien (Haute école de gestion de Genève, HES-SO Haute Ecole Spécialisée de Suisse Occidentale) Masserey, Alexandre (Ycoor Systems SA, Sierre, Switzerland) Picasso, Marco (Ecole polytechnique fédérale de Lausanne, Switzerland)
Date
2021-01
Publié dans
Proceedings of the 14th World Congress on Computational Mechanics (WCCM) and ECCOMAS Congress 2020
Publié par
Virtual conference, 11-15 January 2021
Pagination
10 p.
Présenté à
14th World Congress on Computational Mechanics (WCCM) and ECCOMAS Congress 2020, Online, 2021-01-11, 2021-01-15