Record Details

Dense granular flows : rheology and segregation

DSpace at IIT Bombay

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Field Value
 
Title Dense granular flows : rheology and segregation
 
Creator KHAKHAR, DV
SARKAR, S
 
Subject size segregation
dynamics
granular flow
rheology
segregation
 
Description 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.
 
Publisher AMER INST PHYSICS
 
Date 2011-10-23T11:29:21Z
2011-12-15T09:11:08Z
2011-10-23T11:29:21Z
2011-12-15T09:11:08Z
2008
 
Type Proceedings Paper
 
Identifier XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2,1027,938-940
978-0-7354-0549-3
0094-243X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15117
http://hdl.handle.net/100/1872
 
Source 15th International Congress on Rheology/80th Annual Meeting of the Society-of-Rheology,Monterey, CA,AUG 03-08, 2008
 
Language English