Ubiquity of domain patterns in sheared viscoelastic fluids.
A ubiquitous domain pattern is observed in two-phase viscoelastic fluids falling within the simple paradigm of soft viscoelastic domains suspended in a less viscoelastic fluid under shear flow. Three strikingly different complex fluids exhibit the same shear-induced domain structure, which we relate to the elasticity of the dispersed phase via an approximate Weissenberg number. We suggest a physical mechanism for the formation of this pervasive pattern, independent of the dynamic origin of the elasticity of the suspended phase.
Hobbie
E K
EK
National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA. erik.hobbie@nist.gov
Lin-Gibson
S
S
Wang
H
H
Pathak
J A
JA
Kim
H
H