An efficient computational model for macroscale simulations of moving contact lines
Résumé
We propose an efficient level-set approach for numerical simulation of moving contact lines. The main purpose is to formulate and test a model wherein the macroscale ow is resolved while the e ects of the microscopic region near a contact line are represented using asymptotic theories. The model covers viscous as well as inertial regimes. Test simulations include axisymmetric displacement ow in a tube and droplet spreading on a at surface. The results show that the present approach leads to excellent convergence properties even with very coarse grids; furthermore, the results agree well with asymptotic analysis, with those obtained with a method for direct numerical simulations (wherein an adaptive grid is used) and also with experiments.
Origine : Fichiers produits par l'(les) auteur(s)
Loading...