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 …

Implicit hybridized discontinuous Galerkin methods for compressible magnetohydrodynamics

C Ciucă, P Fernandez, A Christophe… - Journal of …, 2020 - Elsevier
We present hybridized discontinuous Galerkin (HDG) methods for ideal and resistive
compressible magnetohydrodynamics (MHD). The HDG methods are fully implicit, high …

Hybridized discontinuous Galerkin methods for wave propagation

P Fernandez, A Christophe, S Terrana… - Journal of Scientific …, 2018 - Springer
We present the recent development of hybridizable and embedded discontinuous Galerkin
(DG) methods for wave propagation problems in fluids, solids, and electromagnetism. In …

Feasibility analysis of ensemble sensitivity computation in turbulent flows

N Chandramoorthy, P Fernandez, C Talnikar, Q Wang - AIAA Journal, 2019 - arc.aiaa.org
In chaotic systems, such as turbulent flows, the solutions to tangent and adjoint equations
exhibit an unbounded growth in their norms. This behavior renders the instantaneous …

Performance and accuracy of hybridized flux reconstruction schemes

CA Pereira, BC Vermeire - Journal of Computational Physics, 2022 - Elsevier
We present a unified framework for the hybridization of flux reconstruction (FR) schemes.
Specifically, we discuss the hybridized flux reconstruction (HFR) and interior-embedded flux …

A physics-based shock capturing method for large-eddy simulation

P Fernandez, NC Nguyen, J Peraire - arXiv preprint arXiv:1806.06449, 2018 - arxiv.org
We present a shock capturing method for large-eddy simulation of turbulent flows. The
proposed method relies on physical mechanisms to resolve and smooth sharp unresolved …

[HTML][HTML] Hybridized formulations of flux reconstruction schemes for advection-diffusion problems

CA Pereira, BC Vermeire - Journal of Computational Physics, 2024 - Elsevier
We present the hybridization of flux reconstruction methods for advection-diffusion problems.
Hybridization introduces a new variable into the problem so that it can be reduced via static …

Shock capturing for discontinuous Galerkin approximations of hypersonic non-equilibrium flow

RL Van Heyningen, C Nguyen, J Peraire - AIAA SCITECH 2023 Forum, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-0853. vid This paper describes the
application of an implicit matrix-free discontinuous Galerkin method for hypersonic flow in …

[PDF][PDF] On the ability of discontinuous Galerkin methods to simulate under-resolved turbulent flows

P Fernandez, NC Nguyen, J Peraire - arXiv preprint arXiv …, 2018 - researchgate.net
We investigate the ability of discontinuous Galerkin (DG) methods to simulate under-
resolved turbulent flows in large-eddy simulation. The role of the Riemann solver and the …

Entropy-stable hybridized discontinuous Galerkin methods for the compressible Euler and Navier-Stokes equations

P Fernandez, NC Nguyen, J Peraire - arXiv preprint arXiv:1808.05066, 2018 - arxiv.org
In the spirit of making high-order discontinuous Galerkin (DG) methods more competitive,
researchers have developed the hybridized DG methods, a class of discontinuous Galerkin …