Lattice Boltzmann Simulation Studies
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Abstract
Abstract
Abstract We study the hydrodynamic behaviour of a mesoscale numerical model for wetting dynamics based on the immersed boundary - lattice Boltzmann (IBLB) method. This IBLB model features a wetting potential to capture the interaction between a non-ideal droplet interface and a solid boundary; it is designed to prevent abrupt curvature changes near the contact line. As this approach prevents direct contact between the droplet and the solid, it forms a thin film beneath the droplet, which could compromise the hydrodynamic consistency in this region. This paper presents detailed comparisons against two other hydrodynamic solvers, respectively based on a boundary element method (BEM) and a volume of fluid (VoF) method, in order to examine the hydrodynamic behaviour of this IBLB scheme, elucidate its limits of validity in wetting applications, and explore the properties of its contact-line model.
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@article{Bellantoni2026hydrodynamic,
title = {On the hydrodynamic behaviour of the immersed boundary-lattice Boltzmann method for wetting problems},
author = {Elisa Bellantoni and Fabio Guglietta and Andreas Demou and Francesca Pelusi and Kiwon Um and Mihalis Nicolaou and Mathieu Desbrun and Mauro Sbragaglia and Nikos Savva},
journal = {Europhysics Letters (EPL)},
year = {2026},
doi = {10.1209/0295-5075/ae92af},
url = {https://doi.org/10.1209/0295-5075/ae92af}
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