Skip navigation

Moment method boundary conditions for multiphase Lattice Boltzmann simulations with partially-wetted walls

Moment method boundary conditions for multiphase Lattice Boltzmann simulations with partially-wetted walls

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)

[img]
Preview
PDF (Publisher's PDF - Open Access)
16937 REIS_Moment_Method_Boundary_Conditions_2015.pdf - Published Version

Download (541kB) | Preview

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 / Department / Research Group: Faculty of Architecture, Computing & Humanities
Faculty of Architecture, Computing & Humanities > Department of Mathematical Sciences
Last Modified: 17 May 2019 14:44
Selected for GREAT 2016: None
Selected for GREAT 2017: GREAT c
Selected for GREAT 2018: GREAT b
Selected for GREAT 2019: GREAT 4
URI: http://gala.gre.ac.uk/id/eprint/16937

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics