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Updated: Oct 22, 2025

Preparation of Free-Surface Hyperbolic Water Vortices
Published on: July 28, 2023
Implementation of lattice Boltzmann free-surface and shallow water models and their two-way coupling
Yann Thorimbert1, Bastien Chopard1, Jonas Lätt1
1Department of Computer Science, University of Geneva, Carouge 1227, Switzerland.
Abstract:
•A detailed, practical description of a 2D lattice Boltzmann (LB) free-surface model and its coupling with a 1D LB shallow water model is provided.•A Python code is provided, that implements the Gaussian droplet benchmark of the research article (Thorimbert et al., 2019) corresponding to this method article.•Particular attention is given to the details of the free-surface implementation which, in the literature, vary among authors. These ambiguities must be addressed in order to build a reproducible scheme, as well as the exact implementation and parameters of the coupling model proposed in the associated research article.
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