Discontinuous Galerkin methods through the lens of variational multiscale analysis

SKF Stoter, B Cockburn, TJR Hughes… - Computer Methods in …, 2022 - Elsevier
In this article, we present a theoretical framework for integrating discontinuous Galerkin
methods in the variational multiscale paradigm. Our starting point is a projector-based …

A variational multiscale method with discontinuous subscales for output-based adaptation of aerodynamic flows

AC Huang, HA Carson, SR Allmaras… - AIAA Scitech 2020 …, 2020 - arc.aiaa.org
In this work, we present an adjoint consistent continuous Galerkin discretization, Varia-tional
Multiscale with Discontinuous Subscales (VMSD), for the simulation of aerodynamic flows …

[HTML][HTML] A variational multiscale method derived from an adaptive stabilized conforming finite element method via residual minimization on dual norms

JF Giraldo, VM Calo - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
This paper interprets the stabilized finite element method via residual minimization as a
variational multiscale method. We approximate the solution to the partial differential …

Residual-based large eddy simulation with isogeometric divergence-conforming discretizations

JA Evans, C Coley, RM Aronson… - … in Computational Fluid …, 2018 - Springer
Isogeometric divergence-conforming discretizations have recently arisen as an attractive
candidate for approximation of the incompressible Navier-Stokes problem. By construction …

Modeling of steep layers in singularly perturbed diffusion–reaction equation via flexible fine-scale basis

A Masud, M Anguiano, I Harari - Computer Methods in Applied Mechanics …, 2020 - Elsevier
We present a new stabilized method for the diffusion–reaction equation which develops
sharp boundary and/or internal layers for the reaction-dominated case (ie singularly …

Nitsche's method as a variational multiscale formulation and a resulting boundary layer fine-scale model

SKF Stoter, MFP ten Eikelder, F de Prenter… - Computer Methods in …, 2021 - Elsevier
We show that in the variational multiscale framework, the weak enforcement of essential
boundary conditions via Nitsche's method corresponds directly to a particular choice of …

Residual-based variational multiscale modeling in a discontinuous Galerkin framework

SKF Stoter, SR Turteltaub, SJ Hulshoff… - Multiscale Modeling & …, 2018 - SIAM
We develop the general form of the variational multiscale method in a discontinuous
Galerkin framework. Our method is based on the decomposition of the true solution into …

A discontinuous Galerkin residual‐based variational multiscale method for modeling subgrid‐scale behavior of the viscous Burgers equation

SKF Stoter, SR Turteltaub, SJ Hulshoff… - … Journal for Numerical …, 2018 - Wiley Online Library
We initiate the study of the discontinuous Galerkin residual‐based variational multiscale (DG‐
RVMS) method for incorporating subgrid‐scale behavior into the finite element solution of …

Stabilizing the convection–diffusion–reaction equation via local problems

U Kaya, M Braack - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
This paper presents a novel two-level finite element method for convection–diffusion–
reaction problems. The proposed scheme consists of a global problem and an ensemble of …

Variational Multiscale Finite-Element Methods for a Nonlinear Convection–Diffusion–Reaction Equation

MS Zhelnin, AA Kostina, OA Plekhov - Journal of Applied Mechanics and …, 2020 - Springer
This paper is devoted to developing finite-element methods for solving a two-dimensional
boundary value problem for a singularly perturbed time-dependent convection–diffusion …