We introduce a new relativistic astrophysics code, SpECTRE, that combines a discontinuous Galerkin method with a task-based parallelism model. SpECTRE's goal is to achieve more …
In this paper we develop a new well-balanced discontinuous Galerkin (DG) finite element scheme with subcell finite volume (FV) limiter for the numerical solution of the Einstein–Euler …
M Dumbser, F Guercilena, S Köppel, L Rezzolla… - Physical Review D, 2018 - APS
We present a strongly hyperbolic first-order formulation of the Einstein equations based on the conformal and covariant Z4 system (CCZ4) with constraint-violation damping, which we …
In this paper we propose an extension of the generalized Lagrangian multiplier method (GLM) of Munz et al.[52],[30], which was originally conceived for the numerical solution of the …
In this paper, we present a new explicit second-order accurate structure-preserving finite volume scheme for the first-order hyperbolic reformulation of the Navier–Stokes–Korteweg …
Discontinuous Galerkin (DG) methods coupled to weighted essentially nonoscillatory (WENO) algorithms allow high order convergence for smooth problems and for the …
SA Teukolsky - Journal of Computational Physics, 2016 - Elsevier
The DG algorithm is a powerful method for solving pdes, especially for evolution equations in conservation form. Since the algorithm involves integration over volume elements, it is not …
H Olivares, IM Peshkov, ER Most, FM Guercilena… - Physical Review D, 2022 - APS
The Einstein and Maxwell equations are both systems of hyperbolic equations which need to satisfy a set of elliptic constraints throughout evolution. However, while electrodynamics …
N Deppe, F Hébert, LE Kidder, W Throwe… - Physical Review D, 2022 - APS
Discontinuous Galerkin methods are popular because they can achieve high order where the solution is smooth, because they can capture shocks while needing only nearest …