Discontinuous Galerkin methods for hypersonic flows

DS Hoskin, RL Van Heyningen, NC Nguyen… - Progress in Aerospace …, 2024 - Elsevier
In recent years, high-order discontinuous Galerkin (DG) methods have emerged as an
attractive approach for numerical simulations of compressible flows. This paper presents an …

Facilitating the adoption of unstructured high-order methods amongst a wider community of fluid dynamicists

PE Vincent, A Jameson - Mathematical Modelling of Natural …, 2011 - cambridge.org
Theoretical studies and numerical experiments suggest that unstructured high-order
methods can provide solutions to otherwise intractable fluid flow problems within complex …

Mesh quality effects on the accuracy of CFD solutions on unstructured meshes

A Katz, V Sankaran - Journal of Computational Physics, 2011 - Elsevier
The order of accuracy and error magnitude of node-and cell-centered schemes are
examined on representative unstructured meshes and flowfield solutions for computational …

A simple shock‐capturing technique for high‐order discontinuous Galerkin methods

A Huerta, E Casoni, J Peraire - International journal for …, 2012 - Wiley Online Library
This article presents a novel shock‐capturing technique for the discontinuous Galerkin (DG)
method. The technique is designed for compressible flow problems, which are usually …

An adaptive viscosity regularization approach for the numerical solution of conservation laws: Application to finite element methods

NC Nguyen, J Vila-Pérez, J Peraire - Journal of Computational Physics, 2023 - Elsevier
We introduce an adaptive viscosity regularization approach for the numerical solution of
systems of nonlinear conservation laws with shock waves. The approach seeks to solve a …

An efficient correction method to obtain a formally third-order accurate flow solver for node-centered unstructured grids

A Katz, V Sankaran - Journal of Scientific Computing, 2012 - Springer
A new method of obtaining third-order accuracy on unstructured grid flow solvers is
presented. The method involves a simple correction to a traditional linear Galerkin scheme …

A data-driven high order sub-cell artificial viscosity for the discontinuous Galerkin spectral element method

J Zeifang, A Beck - Journal of Computational Physics, 2021 - Elsevier
In this work, we present a novel higher-order smooth artificial viscosity method for the
discontinuous Galerkin spectral element method and related high order methods. A neural …

Shock capturing with entropy-based artificial viscosity for staggered grid discontinuous spectral element method

H Abbassi, F Mashayek, GB Jacobs - Computers & Fluids, 2014 - Elsevier
This paper presents a shock capturing technique for a staggered grid discontinuous spectral
element method (DSEM), which adds localized and smooth artificial viscosity to systems of …

[HTML][HTML] Localized artificial viscosity stabilization of discontinuous Galerkin methods for nonhydrostatic mesoscale atmospheric modeling

ML Yu, FX Giraldo, M Peng… - Monthly Weather …, 2015 - journals.ametsoc.org
Gibbs oscillation can show up near flow regions with strong temperature gradients in the
numerical simulation of nonhydrostatic mesoscale atmospheric flows when using the high …

r-adaptive algorithms for supersonic flows with high-order Flux Reconstruction methods

FB Ameur, J Balis, R Vandenhoeck, A Lani… - Computer Physics …, 2022 - Elsevier
The present paper addresses the development and implementation of the first r-adaptive
mesh refinement (r-AMR) algorithm for a high-order Flux Reconstruction solver. The r …