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Lookup NU author(s): Dr Elfego Ruiz GutierrezORCiD, Dr Josef Hasslberger, Dr Markus Klein, Professor Kenneth Dalgarno, Professor Nilanjan ChakrabortyORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2024 The Authors. Multiphase numerical simulations have become a widely sought methodology for modelling capillary flows due to their scientific relevance and multiple industrial applications. Much progress has been achieved using different approaches, and the volume of fluid is one of the most popular methods widely used for modelling two or more phases due to its simplicity, accuracy and robustness. However, when prescribing the forces emerging from three or more fluid-fluid interfaces, the force balance is not guaranteed and can lead to spurious self-propulsion. Here, a new approach to account for the surface tension forces for multiphase flows with a correct force balance is proposed. The newly proposed method is successfully validated for a wide range of tests, including contact angles for the fluid-fluid and fluid-solid triple line. Additionally, complete spreading phenomena of fluid on fluid and fluid on solid have been found to emerge naturally from the newly proposed surface tension force model. Finally, simulation results are compared against experiments of lubricant-impregnated surfaces to demonstrate the practical applicability of the newly proposed method.
Author(s): Ruiz-Gutiérrez E, Hasslberger J, Klein M, Dalgarno K, Chakraborty N
Publication type: Article
Publication status: Published
Journal: Journal of Computational Physics
Year: 2024
Volume: 513
Print publication date: 15/09/2024
Online publication date: 31/05/2024
Acceptance date: 25/05/2024
Date deposited: 29/05/2024
ISSN (print): 0021-9991
ISSN (electronic): 1090-2716
Publisher: Academic Press Inc.
URL: https://doi.org/10.1016/j.jcp.2024.113149
DOI: 10.1016/j.jcp.2024.113149
Data Access Statement: The data supporting the findings in this study are available from the authors upon reasonable request.
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