Numerical methods for viscoelastic fluid flows

MA Alves, PJ Oliveira, FT Pinho - Annual Review of Fluid …, 2021 - annualreviews.org
Complex fluids exist in nature and are continually engineered for specific applications
involving the addition of macromolecules to a solvent, among other means. This imparts …

Understanding viscoelastic flow instabilities: Oldroyd-B and beyond

HAC Sánchez, MR Jovanović, S Kumar… - Journal of Non …, 2022 - Elsevier
The Oldroyd-B model has been used extensively to predict a host of instabilities in shearing
flows of viscoelastic fluids, often realized experimentally using polymer solutions. The …

The Oldroyd-B fluid in elastic instabilities, turbulence and particle suspensions

ESG Shaqfeh, B Khomami - Journal of Non-Newtonian Fluid Mechanics, 2021 - Elsevier
The Oldroyd-B fluid has become the starting point for almost all complex flow calculations
and analysis involving the behavior of dilute polymer solutions. The reasons for this are …

A mathematician's perspective on the Oldroyd B model: Progress and future challenges

M Renardy, B Thomases - Journal of Non-Newtonian Fluid Mechanics, 2021 - Elsevier
We review progress and open challenges for a number of problems related to the Oldroyd B
model which are of current interest to the mathematical community. We discuss existence …

The log-conformation tensor approach in the finite-volume method framework

A Afonso, PJ Oliveira, FT Pinho, MA Alves - Journal of Non-Newtonian Fluid …, 2009 - Elsevier
The log-conformation formulation, proposed by Fattal and Kupferman [J. Non-Newt. Fluid
Mech. 123 (2004) 281], has helped to provide further insights into the High-Weissenberg …

Birefringent strands drive the flow of viscoelastic fluids past obstacles

O Mokhtari, JC Latché, M Quintard… - Journal of Fluid …, 2022 - cambridge.org
The flow of polymer solutions past solid obstacles or through porous media gives rise to rich
physical phenomena over a wide range of spatial and temporal scales. Viscoelasticity, in …

[PDF][PDF] On the rheology of particle suspensions in viscoelastic fluids.

ESG Shaqfeh - AIChE Journal, 2019 - researchgate.net
The principles of suspension mechanics in Newtonian fluids particularly at low Reynolds
number were established on a rigorous basis via a bevy of papers from George Batchelor …

Fully resolved viscoelastic particulate simulations using unstructured grids

S Krishnan, ESG Shaqfeh, G Iaccarino - Journal of Computational Physics, 2017 - Elsevier
Viscoelastic particulate suspensions play a key role in many energy applications. Our goal is
to develop a simulation-based tool for engineering such suspensions. This study is …

Free-energy-dissipative schemes for the Oldroyd-B model

S Boyaval, T Lelièvre, C Mangoubi - ESAIM: Mathematical Modelling …, 2009 - cambridge.org
In this article, we analyze the stability of various numerical schemes for differential models of
viscoelastic fluids. More precisely, we consider the prototypical Oldroyd-B model, for which a …

Micro-macro models for viscoelastic fluids: modelling, mathematics and numerics

C Le Bris, T Lelièvre - Science China Mathematics, 2012 - Springer
This paper is an introduction to the modelling of viscoelastic fluids, with an emphasis on
micromacro (or multiscale) models. Some elements of mathematical and numerical analysis …