Effect of destabilizing fields on hydrodynamic instabilities in nematics

Kini, U.D.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/948

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DC Field	Value	Language
dc.contributor.author	Kini, U.D.	-
dc.date.accessioned	2005-12-29T04:56:25Z	-
dc.date.available	2005-12-29T04:56:25Z	-
dc.date.issued	1980-09	-
dc.identifier.citation	Pramana, 1980, Vol. 15, p231-244.	en
dc.identifier.issn	0304-4289	-
dc.identifier.uri	http://hdl.handle.net/2289/948	-
dc.description.abstract	The effect of destabilizing fields on the roll instability (RI) threshold for shear flow and on the homogeneous instability (HI) threshold for plane Poiseuille flow of nematic HBAB (μ3 > 0) is studied on the basis of the continuum theory of nematics for flow cells of infinite lateral width. It turns out that the critical shear rate and wave vector at RI threshold decrease with increasing destabilizing field but do not approach zero at the Freedericksz transition. However calculations show that beyond the Freedericksz threshold HI may be favourable over a range of destabilizing field with shear in the stabilizing role. For plane Poiseuille flow a similar analysis points to the existence of a HI threshold in the presence of destabilizing field beyond the Freedericksz threshold again with shear acting as a stabilizing field. These results are compared with theoretical results obtained previously for MBBA	en
dc.format.extent	496774 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences, Bangalore, India.	en
dc.rights	Indian Academy of Sciences, Bangalore, India.	en
dc.subject	Roll instability	en
dc.subject	Nematics	en
dc.subject	MBBA	en
dc.subject	HBAB	en
dc.subject	Homogeneous instability	en
dc.subject	Shear flow	en
dc.subject	Plane Poiseuille flow	en
dc.title	Effect of destabilizing fields on hydrodynamic instabilities in nematics	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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