Pinching instability of convective rolls in an anisotropic fluid : first step to chaos
- 1 January 1986
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 47 (5) , 739-743
- https://doi.org/10.1051/jphys:01986004705073900
Abstract
A new instability in the convective roll structure of a nematic subjected to an AC electric field is presented. It brings a new structure characterized by a periodic pinching of the rolls along their axis. This structure has features similar to those of the so-called skewed varicose in the Rayleigh-Bénard convection of isotropic fluids. The study of the streamlines shows that the pinching creates a new rotation mode and that this is the first important step in the disorganization of a convective flow before the onset of chaosKeywords
This publication has 3 references indexed in Scilit:
- Oblique Roll Instability in an Electroconvective Anisotropic FluidPhysical Review Letters, 1986
- Hydrodynamic transitions to chaos in the convection of an anisotropic fluidJournal de Physique, 1986
- A New Pattern in a Nematic Liquid CrystalJapanese Journal of Applied Physics, 1975