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Main Title: The Viscosity Coefficients of Oriented Nematic and Nematic Discotic Liquid Crystals; Affine Transformation Model
Author(s): Baalss, D.
Hess, Siegfried
Type: Article
Language Code: en
Abstract: General expressions are derived for the anisotropy of the viscosity and for the Leslie coefficients governing the flow alignment subject to the assumption that the equipotential surfaces for the interaction of oriented nonspherical molecules in the nematic or nematic discotic phase of a liquid crystal are related to a spherical interaction potential by an affine transformation. In particular, for uniaxial particles, the seven independent viscosity coefficients of a nematic are given in terms of the two viscosity coefficients of a reference fluid of spherical particles and the axes ratio of the nonspherical molecules. The theory is compared with results from nonequilibrium molecular dynamics computer simulations and with experimental data.
Issue Date: 1988
Date Available: 2-Jan-2019
DDC Class: 500 Naturwissenschaften und Mathematik
Subject(s): viscosity coefficients
oriented nematic
nematic discotic
liquid crystals
Journal Title: Zeitschrift für Naturforschung A
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 43
Issue: 7
Publisher DOI: 10.1515/zna-1988-0709
Page Start: 662
Page End: 670
EISSN: 1865-7109
ISSN: 0932-0784
Appears in Collections:Inst. Theoretische Physik » Publications

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