Extrusion instabilities and wall slip
MM Denn - Annual Review of Fluid Mechanics, 2001 - annualreviews.org
EXTRUSION INSTABILITIES AND WALL SLIP | Annual Reviews Menu Publications AZ Journal
Information About Subscribe Give Personal Register/Sign-in 0 Cart Help Journal Information …
Information About Subscribe Give Personal Register/Sign-in 0 Cart Help Journal Information …
Nucleation and expansion during extrusion and microwave heating of cereal foods
Expansion of biopolymer matrices is the basis for the production of a wide variety of cereal
foods. A limited number of manufacturing processes provide practical solutions for the …
foods. A limited number of manufacturing processes provide practical solutions for the …
State of the‐art for extrudate swell of molten polymers: from fundamental understanding at molecular scale toward optimal die design at final product scale
Polymer extrudate swell is a rheological phenomenon taking place after polymer melt flow
emerges the die exit of extrusion equipment, due to flow redistributions and molecular stress …
emerges the die exit of extrusion equipment, due to flow redistributions and molecular stress …
A finite difference technique for simulating unsteady viscoelastic free surface flows
This work is concerned with the development of a numerical method capable of simulating
viscoelastic free surface flow of an Oldroyd-B fluid. The basic equations governing the flow …
viscoelastic free surface flow of an Oldroyd-B fluid. The basic equations governing the flow …
A 3rd order upwind finite volume method for generalised Newtonian fluid flows
P Neofytou - Advances in Engineering Software, 2005 - Elsevier
The non-Newtonian effects in the flow of non-Newtonian fluids that can be modelled with
generalised Newtonian constitutive equations are investigated using a numerical scheme …
generalised Newtonian constitutive equations are investigated using a numerical scheme …
Yielding the yield stress analysis: A thorough comparison of recently proposed elasto-visco-plastic (EVP) fluid models
D Fraggedakis, Y Dimakopoulos… - Journal of Non-Newtonian …, 2016 - Elsevier
We examine and compare five constitutive models, which have been recently proposed to
describe the behavior of elasto-visco-plastic fluids. The comparison is performed in simple …
describe the behavior of elasto-visco-plastic fluids. The comparison is performed in simple …
Effect of polymer swell in extrusion foaming of low-density polyethylene
L Lombardi, D Tammaro - Physics of Fluids, 2021 - pubs.aip.org
MATERIALS AND METHODS The polymer used for the experiments is a low density
polyethylene (LDPE) of commercial grade, type 2602 from Sabic. The materials were …
polyethylene (LDPE) of commercial grade, type 2602 from Sabic. The materials were …
Origin of the sharkskin instability: nonlinear dynamics
The appearance of surface distortions on polymer melt extrudates, often referred to as
sharkskin instability, is a long-standing problem. We report results of a simple physical …
sharkskin instability, is a long-standing problem. We report results of a simple physical …
PEGAFEM-V: a new Petrov-Galerkin finite element method for free surface viscoelastic flows
The recently proposed finite element (FE) formulation for viscoelastic flows that allows the
use of equal order linear interpolants for all variables and simultaneously does not suffer …
use of equal order linear interpolants for all variables and simultaneously does not suffer …
[PDF][PDF] A survey of computational rheology
R Keunings - Proceedings of the XIIIth international congress on …, 2000 - perso.uclouvain.be
ABSTRACT A survey is presented of the field of computational rheology applied to the
analysis of viscoelastic effects in complex flows of polymeric fluids. First, I outline the …
analysis of viscoelastic effects in complex flows of polymeric fluids. First, I outline the …