Fifth-order A-WENO schemes based on the path-conservative central-upwind method

S Chu, A Kurganov, M Na - Journal of Computational Physics, 2022 - Elsevier
We develop fifth-order A-WENO finite-difference schemes based on the path-conservative
central-upwind method for nonconservative one-and two-dimensional hyperbolic systems of …

On the accuracy of shock-capturing schemes calculating gas-dynamic shock waves

VA Kolotilov, AA Kurganov, VV Ostapenko… - Computational …, 2023 - Springer
A comparative experimental accuracy study of three shock-capturing schemes (the second-
order CABARET, third-order Rusanov, and fifth-order in space third-order in time A-WENO …

A Well-Balanced Fifth-Order A-WENO Scheme Based on Flux Globalization

S Chu, A Kurganov, R Xin - arXiv preprint arXiv:2412.19901, 2024 - arxiv.org
We construct a new fifth-order flux globalization based well-balanced (WB) alternative
weighted essentially non-oscillatory (A-WENO) scheme for general nonconservative …

Novel High‐Order Alternative Finite Difference Central WENO Schemes for Hyperbolic Conservation Laws

Z Gao, ZY Tang, BS Wang… - Numerical Methods for …, 2025 - Wiley Online Library
The fifth‐order alternative finite difference weighted essentially non‐oscillatory (A‐WENO5)
scheme is dominated by the truncation error of interpolation, resulting in a loss of one order …

Adaptive high-order A-WENO schemes based on a new local smoothness indicator

A Chertock, S Chu, A Kurganov - arXiv preprint arXiv:2211.07099, 2022 - arxiv.org
We develop new adaptive alternative weighted essentially non-oscillatory (A-WENO)
schemes for hyperbolic systems of conservation laws. The new schemes employ the …

Low-dissipation central-upwind schemes for compressible multifluids

S Chu, A Kurganov, R Xin - Journal of Computational Physics, 2024 - Elsevier
We introduce second-order low-dissipation (LD) path-conservative central-upwind (PCCU)
schemes for the one-(1-D) and two-dimensional (2-D) multifluid systems, whose …

Virtual finite element and hyperbolic problems: the PAMPA algorithm

R Abgrall, Y Liu, W Boscheri - arXiv preprint arXiv:2412.01341, 2024 - arxiv.org
In this paper, we explore the use of the Virtual Element Method concepts to solve scalar and
system hyperbolic problems on general polygonal grids. The new schemes stem from the …

On the integral convergence of numerical schemes calculating gas-dynamic shock waves

VV Ostapenko, EI Polunina, NA Khandeeva - Doklady Mathematics, 2023 - Springer
A comparative analysis of the accuracy of shock-capturing schemes, such as the RBM
(Rusanov–Burstein–Mirin), CWA (Compact high order Weak Approximation), and A-WENO …

Local Characteristic Decomposition of Equilibrium Variables for Hyperbolic Systems of Balance Laws

S Chu, A Kurganov, M Na, R Xin - arXiv preprint arXiv:2412.19791, 2024 - arxiv.org
This paper is concerned with high-order numerical methods for hyperbolic systems of
balance laws. Such methods are typically based on high-order piecewise polynomial …

Numerical simulation of two-phase porous medium flow with an active additive

TS Sharifullina, AA Cherevko, VV Ostapenko - … and Mathematical Physics, 2024 - Springer
The accuracy of the CABARET scheme (of second order) is compared with the accuracy of
the WENO5 and A-WENO schemes (of fifth order in space and fourth order in time) as …