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Orientational instabilities in Couette flow of non-flow-aligning nematic liquid crystals

Ignacio Zúñiga

Open publisher page 10 citations

Abstract

A numerical solution of the continuum equations for nonaligning nematic liquid crystals in cylindrical Couette flow is obtained. The initial orientation of the director is radial and therefore contained in the plane of the shear. The stability of the solution is analyzed for a series of sets of material constants in order to investigate the dependence of the stability threshold with temperature. The results are compared with experiments.

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What this paper is about

A numerical solution of the continuum equations for nonaligning nematic liquid crystals in cylindrical Couette flow is obtained. The initial orientation of the director is radial and therefore contained in the plane of the shear. The stability of the solution is analyzed for a series of sets of material constants in order to investigate the dependence of the stability threshold with temperature. The results are compared with experiments.

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Available abstract

A numerical solution of the continuum equations for nonaligning nematic liquid crystals in cylindrical Couette flow is obtained. The initial orientation of the director is radial and therefore contained in the plane of the shear. The stability of the solution is analyzed for a series of sets of material constants in order to investigate the dependence of the stability threshold with temperature. The results are compared with experiments.

Key concepts: Liquid crystal, Couette flow, Physics, Shear flow, Flow (mathematics), Condensed matter physics, Mechanics, Shear (geology)

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