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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1872

Title: Dense granular flows : rheology and segregation
Authors: KHAKHAR, DV
SARKAR, S
Keywords: size segregation
dynamics
Issue Date: 2008
Publisher: AMER INST PHYSICS
Citation: XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2,1027,938-940
Abstract: Flowing granular mixtures tend to segregate altering the flow characteristics and introducing an additional level of complexity. We use high speed video imaging to study the motion of individual particles in dense granular flows. Experimental results are presented for free surface flows of binary mixtures of equal size but different density particles. The flowing material exhibits some characteristics similar to glassy materials and these are highlighted. A model for density-driven segregation, developed in the framework of glassy systems, is presented. Segregation is found to depend on the effective temperature defined by the fluctuation dissipation relation. The predictions of the model agree well with experimental results.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/15117
http://hdl.handle.net/100/1872
ISBN: 978-0-7354-0549-3
ISSN: 0094-243X
Appears in Collections:Proceedings papers

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