Cholesteric shear flow normal to the helical axis:  The effect of a magnetic field

Kini, U.D.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3038

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DC Field	Value	Language
dc.contributor.author	Kini, U.D.	-
dc.date.accessioned	2007-06-21T06:10:25Z	-
dc.date.available	2007-06-21T06:10:25Z	-
dc.date.issued	1980	-
dc.identifier.citation	Proceedings of the international liquid crystals conference, Bangalore, 1979. Ed. S Chandrasekhar. Heyden, 1980, p255-261	en
dc.identifier.issn	0-85501-163-7	-
dc.identifier.uri	http://hdl.handle.net/2289/3038	-
dc.description	Restricted Access.	en
dc.description.abstract	The effects of shear rate (S) and magnetic field applied normal to the cholesteric helical axis are studied on the basis of the continuum theory for steady state flow. For twisted HBAB and MBBA the variation of the apparent viscosity (η) with S is found to be opposite, leading one to speculate the possible postponement of the roll instability threshold in HBAB by the addition of chiralic impurities. At low S a sufficiently strong, magnetic field can pro- foundly influence η, though at high S the shear dominates. At low S for general asymmetric solutions the oscillations of η with pitch are analytically shown to be strongly influenced by the value of the twist angle at the centre when the pitch is of the order of the sample thickness. This consideration could be important in flow experiments on long pitch cholesterics.	en
dc.format.extent	262342 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Heyden	en
dc.rights	1980 Heyden	en
dc.title	Cholesteric shear flow normal to the helical axis: The effect of a magnetic field	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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