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Extension of Einstein's viscosity equation to that for concentrated dispersions of solutes and particles

Paper ID Volume ID Publish Year Pages File Format Full-Text
21879 43241 2006 5 PDF Available
Title
Extension of Einstein's viscosity equation to that for concentrated dispersions of solutes and particles
Abstract

A viscosity equation for concentrated solutions or suspensions is derived as an extension of Einstein's hydrodynamic viscosity theory for dilute dispersions of spherical particles. The derivation of the equation is based on the calculation of dissipation of mechanical energy into heat in the dispersion, subtracting the energy dissipation in the portion of solutes or particles. The viscosity equation derived thus was well fitted to the viscosity-concentration relationship of the concentrated aqueous solutions of glucose and sucrose. For the suspensions of bakers’ yeast, the concentration dependency of viscosity was expressed well with some modification for the flow pattern around suspended particles. It is suggested that these viscosity equations can be widely applied to both diluted and concentrated dispersions of various solutes and particles.

Keywords
viscosity equation; concentrated dispersion; dissipation energy; bakers' yeast
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Extension of Einstein's viscosity equation to that for concentrated dispersions of solutes and particles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 102, Issue 6, December 2006, Pages 524–528
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us