Efficient Newton‐multigrid FEM solver for multifield nonlinear coupled problems applied to thixoviscoplastic flows

N Begum, A Ouazzi, S Turek - PAMM, 2023 - Wiley Online Library
This note is concerned with efficient Newton‐multigrid finite element method (FEM) solver for
multifield nonlinear flow problems. In our approach, for efficient FEM solver, we …

FEM simulation of thixo‐viscoplastic flow problems: Error analysis

N Begum, A Ouazzi, S Turek - PAMM, 2023 - Wiley Online Library
This note is concerned with the essential part of Finite Element Methods (FEM)
approximation of error analysis for quasi‐Newtonian modelling of thixo‐viscoplastic (TVP) …

Monolithic Newton‐Multigrid Finite Element Methods for the Simulation of Thixoviscoplastic Flows

N Begum, A Ouazzi, S Turek - International Journal for …, 2024 - Wiley Online Library
In this paper, we shall be concerned with the development, application, and numerical
analysis of the monolithic Newton‐Multigrid finite element method (FEM) to simulate …

[HTML][HTML] A spectral collocation scheme for the two dimensional flow of a regularized viscoplastic fluid: Numerical results and comparison with analytical solution

L Fusi, A Giovinetto - Mathematics and Computers in Simulation, 2024 - Elsevier
In this paper we present a numerical scheme based on spectral collocation method (SCM)
for the two dimensional incompressible creeping flow of a non-Newtonian fluid in a …

[PDF][PDF] Newton-multigrid FEM solver for the simulation of quasi-newtonian modeling of thixotropic flows

A Ouazzi - 2021 - wwwold.mathematik.tu-dortmund.de
This paper is concerned with the application of Finite Element Methods (FEM) and Newton-
Multigrid solvers to simulate thixotropic flows using quasi-Newtonian modeling. The …

FEM modeling and simulation of thixo-viscoplastic flow problems

N Begum, A Ouazzi, S Turek - AIP Conference Proceedings, 2024 - pubs.aip.org
We are concerned, in this work, with Finite Element Method (FEM) for modeling and
simulation of thixotropy in viscoplastic materials. We use a quasi-Newtonian approach to …

[PDF][PDF] Efficient FEM simulation techniques for thixoviscoplastic flow problems

N Begum - 2023 - eldorado.tu-dortmund.de
This thesis is concerned with the numerical simulations of thixoviscoplastic (TVP) flow
problems. As a nonlinear multifield two-way coupled problem, the analysis of …

[PDF][PDF] An adaptive discrete Newton method for a regularization-free Bingham model

A Fatima - 2023 - eldorado.tu-dortmund.de
Developing a numerical and algorithmic tool which correctly identifies unyielded regions in
the yield stress fluid flow is a challenging task. Two approaches are commonly used to …

[PDF][PDF] Robust adaptive discrete Newton method for regularization-free Bingham model

A Fatima, MA Afaq, S Turek, A Ouazzi - 2023 - mathematik.tu-dortmund.de
Developing a numerical and algorithmic tool which accurately detects unyielded regions in
yield stress fluid flow is a difficult endeavor. To address these issues, two common …

[PDF][PDF] Finite Element Methods for the simulation of thixotropic flow problems

N Begum, A Ouazzi, S Turek - Ergebnisberichte des Instituts für … - pdfs.semanticscholar.org
This note is concerned with the application of Finite Element Methods (FEM) and Newton-
Multigrid solvers for the simulation of thixotropic flow problems. The thixotropy phenomena …