Banded spatiotemporal chaos in sheared nematogenic fluids
arXiv:1002.0213 · doi:10.1103/PhysRevE.82.065301
Abstract
We present the results of a numerical study of a model of the hydrodynamics of a sheared nematogenic fluid, taking into account the effects of order parameter stresses on the velocity profile, but allowing spatial variations only in the gradient direction. When parameter values are such that the stress from orientational distortions is comparable to the bare viscous stress, the system exhibits steady states with the characteristics of shear banding. In addition, nonlinearity in the coupling of extensional flow to orientation leads to the appearance of a new steady state in which the features of both spatiotemporal chaos and shear banding are present.
4 pages, 6 figures.(Some of the figures have low resolution so as to fit the requirements of arxiv.)
References in corpus (5)
- Spatio-temporal dynamics of wormlike micelles under shear
- Interface instability in shear banding flow
- Elastic turbulence in shear banding wormlike micelles
- Taylor-like vortices in the shear-banding flow of giant micelles
- Vorticity structuring and Taylor-like velocity rolls triggered by gradient shear bands