منابع مشابه
On the Viscosity of Emulsions
Combining direct computations with invariance arguments, Taylor’s constitutive equation for an emulsion can be extrapolated to high shear rates. We show that the resulting expression is consistent with the rigorous limits of small drop deformation and that it bears a strong similarity to an a priori unrelated rheological quantity, namely the dynamic (frequency dependent) linear shear response. ...
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The issue of whether extensional viscosity is a concept that causes more confusion than enlightenment is addressed. This author’s view is that misuse of the concept certainly has caused much confusion and, although it is in principle a simple and straightforward idea, it continues to be misused. What is straightforward is the formal definition of extensional viscosity, for steady uniform extens...
متن کاملInfluence of Cluster Formation: Viscosity of Concentrated Emulsions
Recently a new theory of viscosity of concentrated emulsions dependency on volume fraction of droplets (Starov V, Zhdanov G: J. Colloid Interface Sci, 258, 404 (2003)) has been suggested that relates the viscosity of concentrated emulsions to formation of clusters. Through experiments with milk at different concentrations of fat, cluster formation has been validated using optical microscopy and...
متن کاملA comparison of viscosity-concentration relationships for emulsions.
Differential effective medium theory (D-EMT) has been used by a number of investigators to derive expressions for the shear viscosity of a colloidal suspension or an emulsion as a function of the volume fraction of the dispersed phase. Pal and Rhodes [R. Pal, E. Rhodes, J. Rheol. 33 (7) (1989) 1021-1045] used D-EMT to derive a viscosity-concentration expression for non-Newtonian emulsions, in w...
متن کاملPassive non-linear microrheology for determining extensional viscosity
Passive non-linear microrheology for determining extensional viscosity Kai-Wen Hsiao,1 Jelena Dinic,2 Yi Ren,1 Vivek Sharma,2 and Charles M. Schroeder1,a) 1Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 S Mathews Avenue, Urbana, Illinois 61801, USA 2Department of Chemical Engineering, University of Illinois at Chicago, 810 S Clinton St., Chi...
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ژورنال
عنوان ژورنال: Procedia Engineering
سال: 2012
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2012.07.467