Abstract
The early stages of the shear banding instability was discussed using the nonlocal Johnson-Segalman model with a 'two fluid' coupling of flow to micellar concentration. The spinodal region was found to be broadened by an extent that increased with proximity to a underlying (zero-shear) CH fluid-fluid (φ) demixing instability. A model which captures a smooth crossover from shear banding instabilities that were perturbed by concentration coupling to demixing instabilities was also presented.
Original language | English |
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Article number | 036313 |
Pages (from-to) | 363131-3631320 |
Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
Volume | 68 |
Issue number | 3 |
DOIs | |
Publication status | Published - Sept 2003 |