単純せん断流中における強磁性棒状粒子からなる非希釈コロイド分散系の配向分布とレオロジー特性 : せん断流と外部磁場の方向が同一である場合の平均場近似を用いた解析(流体工学,流体機械)

概要

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We analyze the orientational distributions and rheological properties of a non-dilute colloidal dispersion composed of the ferromagnetic spherocylinder particles subjected to a simple shear flow. We show how to apply the mean-field theory to the system for an external magnetic field parallel to the shear flow in order to understand the effects of the interactions among the particles. We conclude that the interactions suppress the Brownian motion of the particles and, therefore, make the particles incline toward the same direction. The viscosity increases when the interactions among particles become stronger in the case where the effects of the Brownian motion and the shear flow are relatively small.
社団法人日本機械学会の論文
2004-03-25