We extend the adaptive moving mesh (AMM) central-upwind schemes recently proposed in Kurganov et al. [Commun. Appl. Math. Comput. 3 (2021) 445–479] in the context of one- (1-D) and two-dimensional (2-D) Euler equations of gas dynamics and granular hydrodynamics, to the 1-D and 2-D Saint-Venant system of shallow water equations. When the bottom topography is nonflat, these equations form hyperbolic systems of balance laws, for which a good numerical method should be capable of preserving a delicate balance between the flux and source terms as well as preserving the nonnegativity of water depth even in the presence of dry or almost dry regions. Therefore, in order to extend the AMM central-upwind schemes to the Saint-Venant systems, we develop special positivity preserving reconstruction and evolution steps of the AMM algorithms as well as special corrections of the solution projection step in (almost) dry areas. At the same time, we enforce the moving mesh to be structured even in the case of complicated 2-D computational domains. We test the designed method on a number of 1-D and 2-D examples that demonstrate robustness and high resolution of the proposed numerical approach.
Keywords: Adaptive moving mesh methods, Saint-Venant systems of shallow water equations, finite-volume methods, well-balanced methods, positivity preserving methods, central-upwind schemes, moving mesh differential equations
@article{M2AN_2022__56_4_1327_0,
author = {Kurganov, Alexander and Qu, Zhuolin and Wu, Tong},
title = {Well-balanced positivity preserving adaptive moving mesh central-upwind schemes for the {Saint-Venant} system},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
pages = {1327--1360},
year = {2022},
publisher = {EDP-Sciences},
volume = {56},
number = {4},
doi = {10.1051/m2an/2022041},
mrnumber = {4444533},
zbl = {1501.65050},
language = {en},
url = {https://www.numdam.org/articles/10.1051/m2an/2022041/}
}
TY - JOUR AU - Kurganov, Alexander AU - Qu, Zhuolin AU - Wu, Tong TI - Well-balanced positivity preserving adaptive moving mesh central-upwind schemes for the Saint-Venant system JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 2022 SP - 1327 EP - 1360 VL - 56 IS - 4 PB - EDP-Sciences UR - https://www.numdam.org/articles/10.1051/m2an/2022041/ DO - 10.1051/m2an/2022041 LA - en ID - M2AN_2022__56_4_1327_0 ER -
%0 Journal Article %A Kurganov, Alexander %A Qu, Zhuolin %A Wu, Tong %T Well-balanced positivity preserving adaptive moving mesh central-upwind schemes for the Saint-Venant system %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2022 %P 1327-1360 %V 56 %N 4 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/m2an/2022041/ %R 10.1051/m2an/2022041 %G en %F M2AN_2022__56_4_1327_0
Kurganov, Alexander; Qu, Zhuolin; Wu, Tong. Well-balanced positivity preserving adaptive moving mesh central-upwind schemes for the Saint-Venant system. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 56 (2022) no. 4, pp. 1327-1360. doi: 10.1051/m2an/2022041
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