A DIFFUSING WAVE SPECTROSCOPY STUDY OF CONSTRICTIVE FLOW OF FOAM

Authors
EARNSHAW JC WILSON M
Citation
Jc. Earnshaw et M. Wilson, A DIFFUSING WAVE SPECTROSCOPY STUDY OF CONSTRICTIVE FLOW OF FOAM, Journal de physique. II, 6(5), 1996, pp. 713-722
Citations number
22
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Mechanics
Journal title
Journal de physique. II → ACNP
ISSN journal
11554312
Volume
6
Issue
5
Year of publication
1996
Pages
713 - 722
Database
ISI
SICI code
1155-4312(1996)6:5<713:ADWSSO>2.0.ZU;2-M
Abstract
The dynamics of a model foam in constrictive flow have been studied by diffusing-wave spectroscopy. Below a threshold strain rate the rate a t which elementary strain-induced rearrangements occur in the foam dep ends only on the strain, whereas above this threshold the rate is simp ly proportional to strain rate. A possible mechanism for the unexpecte d behaviour at low strain rates is outlined.