Nonlinear dynamics and breakup of free-surface flows

J Eggers - Reviews of modern physics, 1997 - APS
Surface-tension-driven flows and, in particular, their tendency to decay spontaneously into
drops have long fascinated naturalists, the earliest systematic experiments dating back to …

On the high Weissenberg number problem

R Keunings - Journal of Non-Newtonian Fluid Mechanics, 1986 - Elsevier
We address the outstanding problem affecting the numerical simulation of steady
viscoelastic flows in complex geometries, namely the existence of a critical value of the …

Nonlinear analysis of the surface tension driven breakup of viscoelastic filaments

DW Bousfield, R Keunings, G Marrucci… - Journal of Non-Newtonian …, 1986 - Elsevier
The surface tension driven breakup of viscoelastic filaments into droplets is qualitatively
different from that of Newtonian liquid filaments. Disturbances on filaments of dilute polymer …

A numerical study of the SPH method for simulating transient viscoelastic free surface flows

J Fang, RG Owens, L Tacher, A Parriaux - Journal of non-newtonian fluid …, 2006 - Elsevier
The smoothed particle hydrodynamics (SPH) method is extended and tested for the
numerical simulation of transient viscoelastic free surface flows. The basic equations …

Temporal analysis of capillary jet breakup

N Ashgriz, F Mashayek - Journal of Fluid Mechanics, 1995 - cambridge.org
The temporal instability of a cylindrical capillary jet is analysed numerically for different liquid
Reynolds numbers Re, disturbance wavenumbers k, and amplitudes ε0. The breakup …

Viscoelasticity in inkjet printing

NF Morrison, OG Harlen - Rheologica acta, 2010 - Springer
We investigate the effects of viscoelasticity on drop generation in inkjet printing. In drop-on-
demand printing, individual ink 'drops' are ejected from a nozzle by imposed pressure …

A finite difference technique for simulating unsteady viscoelastic free surface flows

MF Tomé, N Mangiavacchi, JA Cuminato… - Journal of Non …, 2002 - Elsevier
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 …

Drop dynamics on the beads-on-string structure for viscoelastic jets: A numerical study

J Li, MA Fontelos - Physics of fluids, 2003 - pubs.aip.org
It is well known that a viscoelastic jet breaks up much more slowly than a Newtonian jet.
Typically, it evolves into the so-called beads-on-string structure, where large drops are …

Iterated stretching of viscoelastic jets

HC Chang, EA Demekhin, E Kalaidin - Physics of fluids, 1999 - pubs.aip.org
We examine, with asymptotic analysis and numerical simulation, the iterated stretching
dynamics of FENE and Oldroyd-B jets of initial radius r 0, shear viscosity ν, Weissenberg …

[PDF][PDF] Micro-macro methods for the multiscale simulation of viscoelastic flow using molecular models of kinetic theory

R Keunings - Rheology reviews, 2004 - Citeseer
We survey the field of micro-macro numerical techniques for predicting complex flows of
viscoelastic fluids. The micro-macro approach couples the mesoscopic scale of kinetic …