Sparse invariant domain preserving discontinuous Galerkin methods with subcell convex limiting

W Pazner - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
In this paper, we develop high-order nodal discontinuous Galerkin (DG) methods for
hyperbolic conservation laws that satisfy invariant domain preserving properties using …

Efficient low-order refined preconditioners for high-order matrix-free continuous and discontinuous Galerkin methods

W Pazner - SIAM Journal on Scientific Computing, 2020 - SIAM
In this paper, we design preconditioners for the matrix-free solution of high-order continuous
and discontinuous Galerkin discretizations of elliptic problems based on finite element …

High-order matrix-free incompressible flow solvers with GPU acceleration and low-order refined preconditioners

M Franco, JS Camier, J Andrej, W Pazner - Computers & Fluids, 2020 - Elsevier
We present a matrix-free flow solver for high-order finite element discretizations of the
incompressible Navier-Stokes and Stokes equations with GPU acceleration. For high …

Wind farm simulations using an overset hp-adaptive approach with blade-resolved turbine models

AC Kirby, MJ Brazell, Z Yang, R Roy… - … Journal of High …, 2019 - journals.sagepub.com
Blade-resolved numerical simulations of wind energy applications using full blade and tower
models are presented. The computational methodology combines solution technologies in a …

Efficient Residual and Matrix-Free Jacobian Evaluation for Three-Dimensional Tri-Quadratic Hexahedral Finite Elements With Nearly-Incompressible Neo-Hookean …

A Mehraban, J Brown, V Barra… - ASME …, 2020 - asmedigitalcollection.asme.org
Soft materials such as rubber, elastomers, and soft biological tissues mechanically deform at
large strain isochorically for all time, or during their initial transient (when a pore fluid …

A scalable matrix-free spectral element approach for unsteady PDE constrained optimization using PETSc/TAO

O Marin, E Constantinescu, B Smith - Journal of Computational Science, 2020 - Elsevier
We provide a new approach for the efficient matrix-free application of the transpose of the
Jacobian for the spectral element method for the adjoint-based solution of partial differential …

Efficient Residual and Matrix-Free Jacobian Evaluation for Three-Dimensional Hexahedral Finite Elements with Nearly-Incompressible Neo-Hookean Hyperelasticity …

A Mehraban - 2021 - search.proquest.com
We examine a residual and matrix-free Jacobian formulation of compressible and nearly
incompressible (ν→ 0.5) displacement-only linear isotropic elasticity with high-order …

[图书][B] Efficient solvers for the implicit time integration of matrix-free high-order methods

M Franco - 2022 - search.proquest.com
In this thesis, we develop and study efficient solvers for high-order Galerkin methods applied
to fluid flow problems. Many flow problems necessitate implicit time-integration schemes in …