Hantsch, Andreas, Reis, Tim ORCID: 0000-0003-2671-416X and Gross, Ulrich (2015) Moment method boundary conditions for multiphase Lattice Boltzmann simulations with partially-wetted walls. The Journal of Computational Multiphase Flows, 7 (1). pp. 1-14. ISSN 1757-482X (Print), 1757-4838 (Online) (doi:https://doi.org/10.1260/1757-482X.7.1.1)

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Abstract

We propose a lattice Boltzmann approach for simulating contact angle phenomena in multiphase fluid systems. Boundary conditions for partially-wetted walls are introduced using the moment method. The algorithm with our boundary conditions allows for a maximum density ratio of 200000 for neutral wetting. The achievable density ratio decreases as the contact angle departs from 90°, but remains of the order O(102) for all but extreme contact angles. In all simulations an excellent agreement between the simulated and nominal contact angles is observed

Item Type:	Article
Uncontrolled Keywords:	Lattice Boltzmann Method, Multiphase flow, Moment-based boundary conditions, Partial wetting
Subjects:	Q Science > QA Mathematics
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science > School of Computing & Mathematical Sciences (CMS) Faculty of Engineering & Science
Last Modified:	04 Mar 2022 13:07
URI:	http://gala.gre.ac.uk/id/eprint/16937

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