Relative viscosity of emulsions in simple shear flow: Temperature, shear rate, and interfacial tension dependence

Se Bin Choi; Joon Sang Lee

doi:10.3795/KSME-B.2015.39.8.677

Relative viscosity of emulsions in simple shear flow: Temperature, shear rate, and interfacial tension dependence

Se Bin Choi, Joon Sang Lee

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

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	https://doi.org/10.3795/KSME-B.2015.39.8.677
Publication status	Published - 2015 Aug

Bibliographical note

Publisher Copyright:
© 2015 The Korean Society of Mechanical Engineers.

All Science Journal Classification (ASJC) codes

Mechanical Engineering

Access to Document

10.3795/KSME-B.2015.39.8.677

Fingerprint Dive into the research topics of 'Relative viscosity of emulsions in simple shear flow: Temperature, shear rate, and interfacial tension dependence'. Together they form a unique fingerprint.

Cite this

@article{d95aef11c16448e1aa700abbd3e19fc1,

title = "Relative viscosity of emulsions in simple shear flow: Temperature, shear rate, and interfacial tension dependence",

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.",

author = "Choi, {Se Bin} and Lee, {Joon Sang}",

note = "Publisher Copyright: {\textcopyright} 2015 The Korean Society of Mechanical Engineers.",

year = "2015",

month = aug,

doi = "10.3795/KSME-B.2015.39.8.677",

language = "English",

volume = "39",

pages = "677--682",

journal = "Transactions of the Korean Society of Mechanical Engineers, B",

issn = "1226-4881",

publisher = "Korean Society of Mechanical Engineers",

number = "8",

}

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 -

Relative viscosity of emulsions in simple shear flow: Temperature, shear rate, and interfacial tension dependence

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this