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arXiv 0903.5507cond-mat.softcond-mat.other
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改进的近球形液滴乳状液粘度-浓度方程

Improved viscosity-concentration equation for emulsions of nearly spherical droplets

Carlos I. Mendoza, I. Santamaria-Holek

摘要:

提出了一种改进的粘度模型,该模型适用于两种不互溶液体在任意体积分数和低剪切速率下的乳状液实验。该模型是基于一个递归微分法制定的适当的缩放变量出现在系统中排除体积效应的分析。这个变量,称为有效填充分数,结合了系统的几何信息,确定了最大的包装和减少到裸填充分数无限稀释的乳液。我们的粘度模型与实验的协议是显着的体积分数和粘度比的所有范围内。

英文摘要:

We propose an improved viscosity model accounting for experiments of emulsions of two immiscible liquids at arbitrary volume fractions and low shear rates. The model is based on a recursive-differential method formulated in terms of the appropriate scaling variable which emerges from an analysis of excluded volume effects in the system. This variable, called the effective filling fraction, incorporates the geometrical information of the system which determines the maximum packing and reduces to the bare filling fraction for infinitely diluted emulsions. The agreement of our model for the viscosity with experiments is remarkable for all the range of volume fractions and viscosity ratio.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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