Novel experimentally observed phenomena in soft matter

Bandyopadhyay, Ranjini

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5767

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DC Field	Value	Language
dc.contributor.author	Bandyopadhyay, Ranjini	-
dc.date.accessioned	2013-09-04T13:39:16Z	-
dc.date.available	2013-09-04T13:39:16Z	-
dc.date.issued	2013-07	-
dc.identifier.citation	Pramana, 2013, Vol.81, p 3-34	en
dc.identifier.issn	0304-4289	-
dc.identifier.uri	http://hdl.handle.net/2289/5767	-
dc.description	Open Access.	en
dc.description.abstract	Soft materials such as colloidal suspensions, polymer solutions and liquid crystals are constituted by mesoscopic entities held together by weak forces. Their mechanical moduli are several orders of magnitude lower than those of atomic solids. The application of small to moderate stresses to these materials results in the disruption of their microstructures. The resulting flow is non-Newtonian and is characterized by features such as shear rate-dependent viscosities and non-zero normal stresses. This article begins with an introduction to some unusual flow properties displayed by soft matter. Experiments that report a spectrum of novel phenomena exhibited by these materials, such as turbulent drag reduction, elastic turbulence, the formation of shear bands and the existence of rheological chaos, flow-induced birefringence and the unusual rheology of soft glassy materials, are reviewed. The focus then shifts to observations of the liquid-like response of granular media that have been subjected to external forces. The article concludes with examples of the patterns that emerge when certain soft materials are vibrated, or when they are displaced with Newtonian fluids of lower viscosities.	en
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences, Bangalore.	en
dc.relation.uri	http://dx.doi.org/10.1007/s12043-013-0555-y	en
dc.rights	2013 Indian Academy of Sciences	en
dc.subject	Disperse systems	en
dc.subject	surfactant and micellar systems	en
dc.subject	associated polymers	en
dc.subject	porous materials, granular materials	en
dc.title	Novel experimentally observed phenomena in soft matter	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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