On discretely entropy conservative and entropy stable discontinuous Galerkin methods

J Chan - Journal of Computational Physics, 2018 - Elsevier
High order methods based on diagonal-norm summation by parts operators can be shown
to satisfy a discrete conservation or dissipation of entropy for nonlinear systems of …

Bend 3d mixed virtual element method for Darcy problems

F Dassi, A Fumagalli, A Scotti, G Vacca - Computers & Mathematics with …, 2022 - Elsevier
In this study, we propose a virtual element scheme to solve the Darcy problem in three
physical dimensions. The main novelty is that curved elements are naturally handled without …

The mixed virtual element method on curved edges in two dimensions

F Dassi, A Fumagalli, D Losapio, S Scialò… - Computer Methods in …, 2021 - Elsevier
In this work, we propose an extension of the mixed Virtual Element Method (VEM) for bi-
dimensional computational grids with curvilinear edge elements. The approximation by …

Assessment of hybrid high-order methods on curved meshes and comparison with discontinuous Galerkin methods

L Botti, DA Di Pietro - Journal of Computational Physics, 2018 - Elsevier
We propose and validate a novel extension of Hybrid High-Order (HHO) methods to meshes
featuring curved elements. HHO methods are based on discrete unknowns that are broken …

On discretely entropy stable weight-adjusted discontinuous Galerkin methods: curvilinear meshes

J Chan, LC Wilcox - Journal of Computational Physics, 2019 - Elsevier
We construct entropy conservative and entropy stable discontinuous Galerkin (DG)
discretizations for time-dependent nonlinear hyperbolic conservation laws on curvilinear …

High‐order cubature rules for tetrahedra

J Jaśkowiec, N Sukumar - International Journal for Numerical …, 2020 - Wiley Online Library
In this paper, we construct new high‐order numerical integration schemes for tetrahedra,
with positive weights and integration points that are in the interior of the domain. The …

Extension of tensor-product generalized and dense-norm summation-by-parts operators to curvilinear coordinates

DC Del Rey Fernández, PD Boom… - Journal of Scientific …, 2019 - Springer
Methodologies are presented that enable the construction of provably linearly stable and
conservative high-order discretizations of partial differential equations in curvilinear …

[HTML][HTML] Efficient entropy-stable discontinuous spectral-element methods using tensor-product summation-by-parts operators on triangles and tetrahedra

T Montoya, DW Zingg - Journal of Computational Physics, 2024 - Elsevier
We present a new class of efficient and robust discontinuous spectral-element methods of
arbitrary order for nonlinear hyperbolic systems of conservation laws on curved triangular …

A weight-adjusted discontinuous Galerkin method for the poroelastic wave equation: Penalty fluxes and micro-heterogeneities

K Shukla, J Chan, MV de Hoop, P Jaiswal - Journal of Computational …, 2020 - Elsevier
We introduce a high-order weight-adjusted discontinuous Galerkin (WADG) scheme for the
numerical solution of three-dimensional (3D) wave propagation problems in anisotropic …

A discontinuous Galerkin method for sequences of earthquakes and aseismic slip on multiple faults using unstructured curvilinear grids

C Uphoff, DA May, AA Gabriel - Geophysical Journal …, 2023 - academic.oup.com
Physics-based simulations provide a path to overcome the lack of observational data
hampering a holistic understanding of earthquake faulting and crustal deformation across …