[HTML][HTML] ExaHyPE: An engine for parallel dynamically adaptive simulations of wave problems

A Reinarz, DE Charrier, M Bader, L Bovard… - Computer Physics …, 2020 - Elsevier
Abstract ExaHyPE (“An Exascale Hyperbolic PDE Engine”) is a software engine for solving
systems of first-order hyperbolic partial differential equations (PDEs). Hyperbolic PDEs are …

High order ADER schemes for continuum mechanics

S Busto, S Chiocchetti, M Dumbser, E Gaburro… - Frontiers in …, 2020 - frontiersin.org
In this paper we first review the development of high order ADER finite volume and ADER
discontinuous Galerkin schemes on fixed and moving meshes, since their introduction in …

On GLM curl cleaning for a first order reduction of the CCZ4 formulation of the Einstein field equations

M Dumbser, F Fambri, E Gaburro, A Reinarz - Journal of Computational …, 2020 - Elsevier
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 …

A unified first-order hyperbolic model for nonlinear dynamic rupture processes in diffuse fracture zones

AA Gabriel, D Li, S Chiocchetti… - … of the Royal …, 2021 - royalsocietypublishing.org
Earthquake fault zones are more complex, both geometrically and rheologically, than an
idealized infinitely thin plane embedded in linear elastic material. To incorporate nonlinear …

High order ADER schemes and GLM curl cleaning for a first order hyperbolic formulation of compressible flow with surface tension

S Chiocchetti, I Peshkov, S Gavrilyuk… - Journal of Computational …, 2021 - Elsevier
In this work, we introduce two novel reformulations of the weakly hyperbolic model for two-
phase flow with surface tension, recently forwarded by Schmidmayer et al. In the model, the …

A massively parallel hybrid finite volume/finite element scheme for computational fluid dynamics

L Río-Martín, S Busto, M Dumbser - Mathematics, 2021 - mdpi.com
In this paper, we propose a novel family of semi-implicit hybrid finite volume/finite element
schemes for computational fluid dynamics (CFD), in particular for the approximate solution of …

Efficient GPU offloading with OpenMP for a hyperbolic finite volume solver on dynamically adaptive meshes

M Wille, T Weinzierl, G Brito Gadeschi… - … Conference on High …, 2023 - Springer
We identify and show how to overcome an OpenMP bottleneck in the administration of GPU
memory. It arises for a wave equation solver on dynamically adaptive block-structured …

Lax-Wendroff flux reconstruction method for hyperbolic conservation laws

A Babbar, SK Kenettinkara, P Chandrashekar - Journal of Computational …, 2022 - Elsevier
Abstract The Lax-Wendroff method is a single step method for evolving time dependent
solutions governed by partial differential equations, in contrast to Runge-Kutta methods that …

DeC and ADER: similarities, differences and a unified framework

M Han Veiga, P Öffner, D Torlo - Journal of Scientific Computing, 2021 - Springer
In this paper, we demonstrate that the explicit ADER approach as it is used inter alia in
Zanotti et al.(Comput Fluids 118: 204–224, 2015) can be seen as a special interpretation of …

On improving the efficiency of ADER methods

MH Veiga, L Micalizzi, D Torlo - Applied Mathematics and Computation, 2024 - Elsevier
The (modern) arbitrary derivative (ADER) approach is a popular technique for the numerical
solution of differential problems based on iteratively solving an implicit discretization of their …