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. § 이 논문은 대한기계학회 2014년도 추계학술대회(2014. 11. 11.-14., 김대중컨벤션센터) 발표논문임. † Corresponding Author, joonlee@yonsei.ac.kr C 2015 The Korean Society of Mechanical Engineers
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