TY - JOUR
T1 - Rheology of a dilute emulsion of surfactant-covered spherical drops
AU - Blawzdziewicz, J.
AU - Vlahovska, P.
AU - Loewenberg, M.
N1 - Funding Information:
This work was supported by NSF grant CTS-9624615, NASA grant NAG3-1935, and a grant from the Whitaker Foundation.
PY - 2000/2/1
Y1 - 2000/2/1
N2 - The rheology of a diluted emulsion of surfactant-covered spherical drops has been investigated. A diluted film of insoluble surfactant is assumed. A matrix formulation of the problem is derived and analyzed by perturbation expansions for low- and high-shear rates, and for high-viscosity drops; the high-viscosity expansion converges rapidly for a wide range of parameters. Our theory provides a quantitative description of shear thinning and normal stress differences that occur as a result of surfactant redistribution.
AB - The rheology of a diluted emulsion of surfactant-covered spherical drops has been investigated. A diluted film of insoluble surfactant is assumed. A matrix formulation of the problem is derived and analyzed by perturbation expansions for low- and high-shear rates, and for high-viscosity drops; the high-viscosity expansion converges rapidly for a wide range of parameters. Our theory provides a quantitative description of shear thinning and normal stress differences that occur as a result of surfactant redistribution.
UR - http://www.scopus.com/inward/record.url?scp=0033908810&partnerID=8YFLogxK
U2 - 10.1016/S0378-4371(99)00366-0
DO - 10.1016/S0378-4371(99)00366-0
M3 - Article
AN - SCOPUS:0033908810
VL - 276
SP - 50
EP - 85
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
SN - 0378-4371
IS - 1
ER -