Adaptive refinement in incompressible fluid flow simulation based on THB-splines-powered isogeometric analysis

B Bastl, K Slabá - Mathematics and Computers in Simulation, 2025 - Elsevier
In this paper, we deal with adaptive refinement in numerical simulation of incompressible
flow solved by isogeometric analysis. We study various error estimators and compare them …

Variations and further developments on the Non-Intrusive Reduced Basis two-grid method

E Grosjean - 2022 - theses.hal.science
The purpose of this thesis is the analysis and the development of low-cost numerical tools.
The first chapter is a review on Non-Intrusive Reduced Basis methods (NIRB) studied during …

A posteriori error estimates and adaptive mesh refinement for the Stokes–Brinkman problem

K Williamson, P Burda, B Sousedík - Mathematics and Computers in …, 2019 - Elsevier
Abstract The Stokes–Brinkman equations model flow in heterogeneous porous media by
combining the Stokes and Darcy models of flow into a single system of equations. With …

Precise FEM solution of a corner singularity using an adjusted mesh

P Burda, J Novotný, J Šístek - International journal for …, 2005 - Wiley Online Library
Within the framework of the finite element method problems with corner‐like singularities (eg
on the well‐known L‐shaped domain) are most often solved by the adaptive strategy: the …

Triple decomposition method for vortex identification in two-dimensional and three-dimensional flows

V Kolář, P Moses, J Šístek - … Fluid Dynamics 2010: Proceedings of the …, 2011 - Springer
A new vortex-identification method has been recently proposed, named as Triple
Decomposition Method (TDM). By decomposing the local motion of a fluid into straining …

Accurate and Efficient Solution of the Stokes-Brinkman Problem

KA Williamson - 2020 - search.proquest.com
We consider three problems related to the numerical solution of the Stokes-Brinkman
equations, which model flow through porous media. We first study and apply residual-based …

A doubly reduced approximation for the solution to PDE's based on a domain truncation and a reduced basis method: Application to Navier-Stokes equations

E Grosjean, Y Maday - 2023 - hal.science
This paper focuses on the non-intrusive reduced basis (NIRB) method called the\textit {two
grids method}. It is used for the simulation of parametric partial differential equations to …

Analytical solution of Stokes flow near corners and applications to numerical solution of Navier-Stokes equations with high precision

P Burda, J Novotný, J Šístek - Applications of Mathematics 2012, 2012 - dml.cz
ApplMath 2012 Page 1 ApplMath 2012 Pavel Burda; Jaroslav Novotný; Jakub Šístek
Analytical solution of Stokes flow near corners and applications to numerical solution of …

Singularities in lid driven cavity solved by adjusted finite element method

P Burda, J Novotný, J Šístek - … Fluid Dynamics 2010: Proceedings of the …, 2011 - Springer
The problem of singularities caused by boundary conditions is studied on the flow in lid
driven cavity. The asymptotic behaviour of pressure near the singularity locations is used …

Accuracy of semiGLS stabilization of FEM for solving Navier–Stokes equations and a posteriori error estimates

P Burda, J Novotný, J Šístek - International journal for …, 2008 - Wiley Online Library
Stabilization of the finite element method for flow problems at high Reynolds numbers is the
main subject of presented research. The semiGLS method is recalled as a modification of …