Divergence-preserving reconstructions on polygons and a really pressure-robust virtual element method for the Stokes problem

D Frerichs, C Merdon - IMA Journal of Numerical Analysis, 2022 - academic.oup.com
Nondivergence-free discretizations for the incompressible Stokes problem may suffer from a
lack of pressure-robustness characterized by large discretizations errors due to irrotational …

A pressure-robust discretization of Oseen's equation using stabilization in the vorticity equation

N Ahmed, GR Barrenechea, E Burman, J Guzmán… - SIAM Journal on …, 2021 - SIAM
Discretization of Navier--Stokes equations using pressure-robust finite element methods is
considered for the high Reynolds number regime. To counter oscillations due to dominating …

An EMA-conserving, pressure-robust and Re-semi-robust method with A robust reconstruction method for Navier–Stokes

X Li, H Rui - ESAIM: Mathematical Modelling and Numerical …, 2023 - esaim-m2an.org
Proper EMA-balance (balance of kinetic energy, linear momentum and angular momentum),
pressure-robustness and Re-semi-robustness (Re: Reynolds number) are three important …

Fortin operator for the Taylor–Hood element

L Diening, J Storn, T Tscherpel - Numerische Mathematik, 2022 - Springer
We design a local Fortin operator for the lowest-order Taylor–Hood element in any
dimension, which was previously constructed only in 2D. In the construction we use …

An arbitrary order and pointwise divergence-free finite element scheme for the incompressible 3D Navier–Stokes equations

ML Hanot - SIAM Journal on Numerical Analysis, 2023 - SIAM
In this paper we discretize the incompressible Navier–Stokes equations in the framework of
finite element exterior calculus. We make use of the Lamb identity to rewrite the equations …

Divergence-conforming discontinuous Galerkin finite elements for Stokes eigenvalue problems

J Gedicke, A Khan - Numerische Mathematik, 2020 - Springer
In this paper, we present a divergence-conforming discontinuous Galerkin finite element
method for Stokes eigenvalue problems. We prove a priori error estimates for the eigenvalue …

A Hellan--Herrmann--Johnson-like Method for the Stream Function Formulation of the Stokes Equations in Two and Three Space Dimensions

PL Lederer - SIAM Journal on Numerical Analysis, 2021 - SIAM
We introduce a new discretization for the stream function formulation of the incompressible
Stokes equations in two and three space dimensions. The method is strongly related to the …

[PDF][PDF] Explicit error estimate for the nonconforming Crouzeix-Raviart finite element

Y Yang - IAENG International Journal of Applied Mathematics, 2020 - iaeng.org
In this paper, we study the explicit expressions of the constants in the error estimate of the
nonconforming finite element method. We obtain an explicit relation between the …

Guaranteed upper bounds for the velocity error of pressure-robust Stokes discretisations

PL Lederer, C Merdon - Journal of Numerical Mathematics, 2022 - degruyter.com
This paper aims to improve guaranteed error control for the Stokes problem with a focus on
pressure-robustness, ie, for discretisations that compute a discrete velocity that is …

Complexes discrets pour les fluides incompressibles.

ML Hanot - 2022 - theses.hal.science
Les complexes différentiels discrets ont récemment attiré l'attention des numériciens en
raison des nombreux avantages qu'ils offrent pour la discrétisation des équations aux …