[HTML][HTML] Discontinuous Galerkin schemes for hyperbolic systems in non-conservative variables: quasi-conservative formulation with subcell finite volume corrections

E Gaburro, W Boscheri, S Chiocchetti… - Computer Methods in …, 2024 - Elsevier
We present a novel quasi-conservative arbitrary high order accurate ADER (Arbitrary-
Derivative) discontinuous Galerkin method allowing to efficiently use a non-conservative …

[HTML][HTML] A well-balanced and exactly divergence-free staggered semi-implicit hybrid finite volume/finite element scheme for the incompressible MHD equations

F Fambri, E Zampa, S Busto, L Río-Martín… - Journal of …, 2023 - Elsevier
We present a new exactly divergence-free and well-balanced hybrid finite volume/finite
element scheme for the numerical solution of the incompressible viscous and resistive …

Neutron stars and the dense matter equation of state: from microscopic theory to macroscopic observations

K Chatziioannou, H Cromartie, S Gandolfi… - arXiv preprint arXiv …, 2024 - arxiv.org
The past years have witnessed tremendous progress in understanding the properties of
neutron stars and of the dense matter in their cores, made possible by electromagnetic …

Space–time adaptive ADER-DG finite element method with LST-DG predictor and a posteriori sub-cell ADER-WENO finite-volume limiting for multidimensional …

IS Popov - Computers & Fluids, 2024 - Elsevier
The space–time adaptive ADER–DG finite element method with LST–DG predictor and a
posteriori sub–cell ADER–WENO finite–volume limiting was used for simulation of …

Binary neutron star mergers using a discontinuous Galerkin-finite difference hybrid method

N Deppe, F Foucart, MS Bonilla, M Boyle… - … and Quantum Gravity, 2024 - iopscience.iop.org
We present a discontinuous Galerkin-finite difference hybrid scheme that allows high-order
shock capturing with the discontinuous Galerkin method for general relativistic …

General relativistic force-free electrodynamics with a discontinuous Galerkin-finite difference hybrid method

Y Kim, ER Most, W Throwe, SA Teukolsky, N Deppe - Physical Review D, 2024 - APS
Relativistic plasmas around compact objects can sometimes be approximated as being
force-free. In this limit, the plasma inertia is negligible and the overall dynamics is governed …

High-order discontinuous Galerkin schemes with subcell finite volume limiter and adaptive mesh refinement for a monolithic first-order BSSNOK formulation of the …

M Dumbser, O Zanotti, I Peshkov - Physical Review D, 2024 - APS
We propose a high order discontinuous Galerkin (DG) scheme with subcell finite volume
(FV) limiter to solve a monolithic first-order hyperbolic Baumgarte-Shapiro-Shibata …

Equilibrium preserving space in discontinuous Galerkin methods for hyperbolic balance laws

J Zhang, Y Xia, Y Xu - arXiv preprint arXiv:2402.01131, 2024 - arxiv.org
In this paper, we develop a general framework for the design of the arbitrary high-order well-
balanced discontinuous Galerkin (DG) method for hyperbolic balance laws, including the …

Well-balanced High-order Finite Difference Weighted Essentially Nonoscillatory Schemes for a First-order Z4 Formulation of the Einstein Field Equations

D Balsara, D Bhoriya, O Zanotti… - The Astrophysical …, 2024 - iopscience.iop.org
We develop a new class of high-order accurate well-balanced finite difference (FD)
weighted essentially nonoscillatory (WENO) methods for numerical general relativity (GR) …

Arbitrary High Order ADER-DG Method with Local DG Predictor for Solutions of Initial Value Problems for Systems of First-Order Ordinary Differential Equations

IS Popov - Journal of Scientific Computing, 2024 - Springer
An adaptation of the arbitrary high order ADER-DG numerical method with local DG
predictor for solving the IVP for a first-order non-linear ODE system is proposed. The …