Novel Local Characteristic Decomposition Based Path-Conservative Central-Upwind Schemes
Abstract
We introduce local characteristic decomposition based path-conservative central-upwind schemes for (nonconservative) hyperbolic systems of balance laws. The proposed schemes are made to be well-balanced via a flux globalization approach, in which source terms are incorporated into the fluxes: This helps to enforce the well-balanced property when the resulting quasi-conservative system is solved using the local characteristic decomposition based central-upwind scheme recently introduced in [{\sc A. Chertock, S. Chu, M. Herty, A. Kurganov, and M. Luk\'{a}\v{c}ov\'{a}-Medvi{\softd}ov\'{a}}, J. Comput. Phys., 473 (2023), Paper No. 111718]. Nonconservative product terms are also incorporated into the global fluxes using a path-conservative technique. We illustrate the performance of the developed schemes by applying them to one- and two-dimensional compressible multifluid systems and thermal rotating shallow water equations.
Cite
@article{arxiv.2405.01929,
title = {Novel Local Characteristic Decomposition Based Path-Conservative Central-Upwind Schemes},
author = {Shaoshuai Chu and Michael Herty and Alexander Kurganov},
journal= {arXiv preprint arXiv:2405.01929},
year = {2024}
}
Comments
arXiv admin note: text overlap with arXiv:2307.16380