An efficient computational model for macroscale simulations of moving contact lines

Abstract : 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.
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Submitted on : Thursday, February 14, 2013 - 6:07:44 PM
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Yi Sui, Peter D.M. Spelt. An efficient computational model for macroscale simulations of moving contact lines. Journal of Computational Physics, Elsevier, 2013, 242, pp.37-52. ⟨10.1016/j.jcp.2013.02.005⟩. ⟨hal-00788635⟩

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