Abstract
We simulate an emulsion system under simple shear rates to analyze its rheological characteristics using the lattice Boltzmann method (LBM). We calculate the relative viscosity of an emulsion under a simple shear flow along with changes in temperature, shear rate, and surfactant concentration. The relative viscosity of emulsions decreased with an increase in temperature. We observed the shear-thinning phenomena, which is responsible for the inverse proportion between the shear rate and viscosity. An increase in the interfacial tension caused a decrease in the relative viscosity of the decane-in-water emulsion because the increased deformation caused by the decreased interfacial tension significantly influenced the wall shear stress.
| Original language | English |
|---|---|
| Pages (from-to) | 677-682 |
| Number of pages | 6 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, B |
| Volume | 39 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2015 Aug |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
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Relative viscosity of emulsions in simple shear flow : Temperature, shear rate, and interfacial tension dependence. / Choi, Se Bin; Lee, Joon Sang.
In: Transactions of the Korean Society of Mechanical Engineers, B, Vol. 39, No. 8, 08.2015, p. 677-682.Research output: Contribution to journal › Article
TY - JOUR
T1 - Relative viscosity of emulsions in simple shear flow
T2 - Temperature, shear rate, and interfacial tension dependence
AU - Choi, Se Bin
AU - Lee, Joon Sang
PY - 2015/8
Y1 - 2015/8
N2 - We simulate an emulsion system under simple shear rates to analyze its rheological characteristics using the lattice Boltzmann method (LBM). We calculate the relative viscosity of an emulsion under a simple shear flow along with changes in temperature, shear rate, and surfactant concentration. The relative viscosity of emulsions decreased with an increase in temperature. We observed the shear-thinning phenomena, which is responsible for the inverse proportion between the shear rate and viscosity. An increase in the interfacial tension caused a decrease in the relative viscosity of the decane-in-water emulsion because the increased deformation caused by the decreased interfacial tension significantly influenced the wall shear stress.
AB - We simulate an emulsion system under simple shear rates to analyze its rheological characteristics using the lattice Boltzmann method (LBM). We calculate the relative viscosity of an emulsion under a simple shear flow along with changes in temperature, shear rate, and surfactant concentration. The relative viscosity of emulsions decreased with an increase in temperature. We observed the shear-thinning phenomena, which is responsible for the inverse proportion between the shear rate and viscosity. An increase in the interfacial tension caused a decrease in the relative viscosity of the decane-in-water emulsion because the increased deformation caused by the decreased interfacial tension significantly influenced the wall shear stress.
UR - http://www.scopus.com/inward/record.url?scp=84964238175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964238175&partnerID=8YFLogxK
U2 - 10.3795/KSME-B.2015.39.8.677
DO - 10.3795/KSME-B.2015.39.8.677
M3 - Article
AN - SCOPUS:84964238175
VL - 39
SP - 677
EP - 682
JO - Transactions of the Korean Society of Mechanical Engineers, B
JF - Transactions of the Korean Society of Mechanical Engineers, B
SN - 1226-4881
IS - 8
ER -