Assessment of particle-migration effects in pressure-driven viscometric flows

Authors
Allende, M Kalyon, DM
Citation
M. Allende et Dm. Kalyon, Assessment of particle-migration effects in pressure-driven viscometric flows, J RHEOL, 44(1), 2000, pp. 79-90
Citations number
33
Categorie Soggetti
Physics
Journal title
JOURNAL OF RHEOLOGY
ISSN journal
01486055 → ACNP
Volume
44
Issue
1
Year of publication
2000
Pages
79 - 90
Database
ISI
SICI code
0148-6055(200001/02)44:1<79:AOPEIP>2.0.ZU;2-U
Abstract
One possible source of error in rheological characterization of concentrate d suspensions using nonhomogeneous flows is the migration of particles from high to low shear rate regions to give rise to concentration gradients in the specimen. Numerical data are presented and simple experimental procedur es rue suggested for the assessment of the particle-migration effects in pr essure-driven viscometers including capillary and rectangular slit viscomet ers. (C) 2000 The Society of Rheology. [S0148-6055(00)00401-6].