1.
Eur Phys J E Soft Matter
; 21(2): 123-32, 2006 Oct.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17139453
RESUMO
The continuum model that has reproduced the experimental observation of exponential shear localisation for straight-edge boundary conditions is adapted to the case of circular geometry. Essentially the same effect is found. However, the scenario of possible velocity profiles is much richer. Our calculations elucidate many recent experiments qualitatively and suggest further extensions of them. Various limits are analysed. In particular, the localisation length vanishes as the inner-boundary velocity tends to zero.