Suspensions of rigid aggregates have been investigated by Stokesian dynamics. In our recent work (Seto R, Botet R, Briesen H. Phys Rev E 84:041405, 2011), the motions of freely suspended aggregates in shear flows were determined by considering the force and torque balance, and forces and moments acting on the contact points within aggregates were also evaluated. Here, by comparing the obtained results with a bond strength between particles, the sustainable sizes of the aggregates under shear flows have been estimated, which leads to a viscosity-shear rate relation. Our method allows us to see not only the power-law shear thinning for fractal aggregates but also some deviations due to the finite-size effects.
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机译：已经通过Stokesian动态研究了刚性聚集体的悬浮液。在我们最近的工作中（Seto R，Botet R，Briesen H. Phys Rev E 84：041405,211），通过考虑力和扭矩平衡来确定剪切流动中自由悬浮的聚集体的动作，以及作用的力量和力矩还评估了聚集体内的接触点。这里，通过将所得结果与颗粒之间的粘合强度进行比较，估计了剪切流下的聚集体的可持续尺寸，从而导致粘度剪切速率关系。我们的方法允许我们不仅可以看到分形聚集体的电力剪切稀疏，而且由于有限尺寸的效果，也存在一些偏差。
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