NDLI: A review of microstructure in concentrated suspensions and its implications for rheology and bulk flow

Content Provider	Springer Nature Link
Author	Morris, Jeffrey F.
Copyright Year	2009
Abstract	An overview of present understanding of microstructure in flowing suspensions is provided. An emphasis is placed on how the microstructure leads to observable bulk flow phenomena unique to mixtures. The bridge between the particle and bulk scales is provided by the mixture rheology; one focus of the review is on work that addresses the connection between microstructure and rheology. The non-Newtonian rheology of suspensions includes the well-known rate dependences of shear thinning and thickening, which have influence on bulk processing of suspensions. Shear-induced normal stresses are also measured in concentrated suspensions and include normal stress differences, and the isotropic particle pressure. Normal stresses have been associated with shear-induced migration, and thus have influence on the ultimate spatial distribution of solids, as well as the flow rate during processing; a second focus is on these uniquely two-phase behaviors and how they can be described in terms of the bulk rheology. An important bulk fluid mechanical consequence of normal stresses is their role in driving secondary flows.
Starting Page	909
Ending Page	923
Page Count	15
File Format	PDF
ISSN	00354511
Journal	Rheologica Acta
Volume Number	48
Issue Number	8
e-ISSN	14351528
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-03-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Suspensions Two-phase flow Normal stresses Colloids Rheology Flow modeling Food Science Polymer Sciences Characterization and Evaluation of Materials Mechanical Engineering Soft and Granular Matter, Complex Fluids and Microfluidics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Materials Science

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