Journal
JOURNAL OF COMPUTATIONAL PHYSICS
Volume 442, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcp.2021.110480
Keywords
Two-phase flow; Surface tension; Wetting; Microfluidics; Droplets; Contact-line
Funding
- Ministerio de Ciencia, Innovacion y Universidades of Spain [PGC2018-101655-B-I00]
- Ministerio de Ciencia, Innovacion y Universidades of Spain via the Severo Ochoa Programme for Centres of Excellence in RD [CEX2018-000797-S]
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A physically consistent approach is introduced to simulate dynamics of droplets in contact with solid substrates. The proposed method is validated through numerical simulations and comparisons with experimental data, demonstrating its accuracy and effectiveness.
A physically consistent approach is introduced to simulate dynamics of droplets in contact with solid substrates. The numerical method is developed by introducing the molecular-kinetic model within the framework of the level-set/enriched finite element method and including the theoretically resolved sub-elemental hydrodynamics. The level-set method is customized to comply fully with the model acquired for the moving contact-line. The consistency of the proposed method is verified by comparing the simulation results with the theoretical predictions. In order to further validate the method, the spreading of a droplet is numerically modeled and compared rigorously with the experimental data reported in the literature. The proposed method is also employed to capture the evolution of a droplet trapped in a conical pore. All test-cases are simulated on three-dimensional computational domains. (C) 2021 The Author(s). Published by Elsevier Inc.
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