期刊
JOURNAL OF COMPUTATIONAL PHYSICS
卷 242, 期 -, 页码 37-52出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcp.2013.02.005
关键词
Moving contact line; Macroscale simulation; Level-set method; Viscous regime; Inertial regime; Asymptotic theories
资金
- EPSRC [EP/E046029/1]
- EPSRC [EP/E046029/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E046029/1] Funding Source: researchfish
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 flow is resolved while the effects 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 flow in a tube and droplet spreading on a flat 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. (C) 2013 Elsevier Inc. All rights reserved.
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