A node-conservative vorticity-preserving Finite Volume method for linear acoustics on unstructured grids
Numerical Analysis
2024-08-27 v1 Numerical Analysis
Abstract
Instead of ensuring that fluxes across edges add up to zero, we split the edge in two halves and also associate different fluxes to each of its sides. This is possible due to non-standard Riemann solvers with free parameters. We then enforce conservation by making sure that the fluxes around a node sum up to zero, which fixes the value of the free parameter. We demonstrate that for linear acoustics one of the non-standard Riemann solvers leads to a vorticity preserving method on unstructured meshes.
Cite
@article{arxiv.2408.13506,
title = {A node-conservative vorticity-preserving Finite Volume method for linear acoustics on unstructured grids},
author = {Wasilij Barsukow and Raphaël Loubère and Pierre-Henri Maire},
journal= {arXiv preprint arXiv:2408.13506},
year = {2024}
}