Modelling of the simple shear flow of a flow-aligning nematic
作者:
GRZEGORZ DERFEL,
BARBARA RADOMSKA,
期刊:
Liquid Crystals
(Taylor Available online 1997)
卷期:
Volume 23,
issue 5
页码: 741-748
ISSN:0267-8292
年代: 1997
DOI:10.1080/026782997208019
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The shear flow induced deformations of a nematic liquid crystal layer have been modelled numerically for the case of flow-aligning nematics. The director deviation from the plane of shear, which was predicted earlier for special surface orientation angles, has been confirmed. This deformation takes a form of director rotation about the axis perpendicular to the layer plane. As a result, transverse flow of the nematic arises. The rotation angle is close to pi at sufficiently strong shear stress, and the director is oriented at the usual flow alignment angle in a significant part of the layer. The director coming out of the shear plane should not be treated as a separate effect taking place during the flow, but rather as a way in which the usual flow-aligned structure is achieved.
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