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 …

Exasim: Generating discontinuous Galerkin codes for numerical solutions of partial differential equations on graphics processors

J Vila-Pérez, RL Van Heyningen, NC Nguyen… - SoftwareX, 2022 - Elsevier
This paper presents an overview of the functionalities and applications of Exasim, an open-
source code for generating high-order discontinuous Galerkin codes to numerically solve …

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 …

Non-modal analysis of spectral element methods: Towards accurate and robust large-eddy simulations

P Fernandez, RC Moura, G Mengaldo… - Computer Methods in …, 2019 - Elsevier
High-order spectral element methods (SEM) for large-eddy simulation (LES) are still very
limited in industry. One of the main reasons behind this is the lack of robustness of SEM for …

Optimal transport for mesh adaptivity and shock capturing of compressible flows

NC Nguyen, RL Van Heyningen, J Vila-Pérez… - Journal of …, 2024 - Elsevier
We present an optimal transport approach for mesh adaptivity and shock capturing of
compressible flows. Shock capturing is based on a viscosity regularization of the governing …

HDGlab: An Open-Source Implementation of the Hybridisable Discontinuous Galerkin Method in MATLAB

M Giacomini, R Sevilla, A Huerta - Archives of Computational Methods in …, 2021 - Springer
This paper presents HDGlab, an open source MATLAB implementation of the hybridisable
discontinuous Galerkin (HDG) method. The main goal is to provide a detailed description of …

Adaptive model reduction of high-order solutions of compressible flows via optimal transport

RL Van Heyningen, NC Nguyen… - International Journal …, 2023 - Taylor & Francis
The solution of conservation laws with parametrised shock waves presents challenges for
both high-order numerical methods and model reduction techniques. We introduce an r …

Hybridizable Discontinuous Galerkin Methods for the Two-Dimensional Monge–Ampère Equation

NC Nguyen, J Peraire - Journal of Scientific Computing, 2024 - Springer
We introduce two hybridizable discontinuous Galerkin (HDG) methods for numerically
solving the two-dimensional Monge–Ampère equation. The first HDG method is devised to …

A hybridizable discontinuous Galerkin method for both thin and 3D nonlinear elastic structures

S Terrana, NC Nguyen, J Bonet, J Peraire - Computer Methods in Applied …, 2019 - Elsevier
We present a 3D hybridizable discontinuous Galerkin (HDG) method for nonlinear elasticity
which can be efficiently used for thin structures with large deformation. The HDG method is …

Gpu-accelerated large eddy simulation of hypersonic flows

S Terrana, C Nguyen, J Peraire - AIAA Scitech 2020 Forum, 2020 - arc.aiaa.org
High-order discontinuous Galerkin (DG) methods have emerged as an attractive approach
for large eddy simulation of turbulent flows owing to their high accuracy and implicit …