Document Detail


Direct investigation of anisotropic suspension structure in pressure-driven flow.
MedLine Citation:
PMID:  20481723     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Evidence is presented to show the microstructural anisotropy responsible for normal stress in sheared suspensions. Particle velocimetry is combined with three-dimensional particle locations obtained via confocal microscopy at rest. A range of volume fractions phi and local shear rates gamma are investigated in a weakly Brownian pressure-driven suspension. At high gamma, the pairwise distribution shows a strong probability along the axis of compression similar to observations from Stokesian dynamics simulation at phi=0.32. At the channel center where gamma-->0, the concentrated suspension at phi=0.56 behaves as a confined isotropic fluid.
Authors:
C Gao; S D Kulkarni; J F Morris; J F Gilchrist
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Publication Detail:
Type:  Journal Article     Date:  2010-04-15
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  81     ISSN:  1550-2376     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-08-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  041403     Citation Subset:  -    
Affiliation:
Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, USA.
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