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Effects of interparticle attractions on colloidal sedimentation.

Abstract:

We use a mesoscopic simulation technique to study the effect of short-ranged interparticle attractions on the steady-state sedimentation of colloidal suspensions. Attractions increase the average sedimentation velocity v(s) compared to the pure hard-sphere case, and for strong enough attractions, a nonmonotonic dependence on the packing fraction phi with a maximum velocity at intermediate phi is observed. Attractions also strongly enhance hydrodynamic velocity fluctuations, which show a prono...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Physical Review Letters More from this journal
Volume:
104
Issue:
6
Pages:
068301
Publication date:
2010-02-11
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:49010
UUID:
uuid:a9e2877d-c9e1-44d5-9914-1a34f41ef3b7
Local pid:
pubs:49010
Source identifiers:
49010
Deposit date:
2012-12-19

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