منابع مشابه
Rheological properties of a reentrant nematic liquid crystal.
We report experimental studies on small angle light scattering (SALS), and rheodielectric and electrorheological properties of a binary mixture of octyloxy cyanobiphenyl and hexyloxy cyanobiphenyl liquid crystals. The mixture exhibits nematic (N) to smectic-A (SmA) phase transitions, and then again to a reentrant nematic (N(R)) phase transition. Rapid shear thinning in the quenched samples in t...
متن کاملWell-posedness of Nematic Liquid Crystal Flow
In this paper, we establish the local well-posedness for the Cauchy problem of the simplified version of hydrodynamic flow of nematic liquid crystals (1.1) in R3 for any initial data (u0, d0) having small L3 uloc -norm of (u0,∇d0). Here L3uloc(R 3) is the space of uniformly locally L3-integrable functions. For any initial data (u0, d0) with small ‖(u0,∇d0)‖L3(R3), we show that there exists a un...
متن کاملNematic Liquid-Crystal Colloids
This article provides a concise review of a new state of colloidal matter called nematic liquid-crystal colloids. These colloids are obtained by dispersing microparticles of different shapes in a nematic liquid crystal that acts as a solvent for the dispersed particles. The microparticles induce a local deformation of the liquid crystal, which then generates topological defects and long-range f...
متن کاملStrong solutions of the compressible nematic liquid crystal flow
We study strong solutions of the simplified Ericksen-Leslie system modeling compressible nematic liquid crystal flows in a domain Ω ⊂ R. We first prove the local existence of unique strong solutions provided that the initial data ρ0, u0, d0 are sufficiently regular and satisfy a natural compatibility condition. The initial density function ρ0 may vanish on an open subset (i.e., an initial vacuu...
متن کاملExtensional Flow of Nematic Liquid Crystal under Electric Field Gradient
Systematic asymptotic methods are used to formulate a model for the extensional flow of a thin sheet of nematic liquid crystal. With no external body forces applied, the model is found to be equivalent to the socalled Trouton model for Newtonian sheets (and fibers), albeit with a modified “Trouton ratio”. However, with a symmetry-breaking electric field gradient applied, behavior deviates from ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1980
ISSN: 0031-9007
DOI: 10.1103/physrevlett.44.414