论文标题
颗粒悬浮液在固体表面上扩散
Spreading of granular suspensions on a solid surface
论文作者
论文摘要
我们检查了悬浮在固体基材上悬挂在牛顿液体中的非棕色球的悬浮液的扩散。我们表明，如果经典的Cox-Voinov法律很好地描述了扩散动力学，前提是，在问题的毛细管数中产生的流体粘度值的值调整为以非平凡的方式取决于粒度和体积分数的值。我们证明这种行为是粒子接近接触线足够近以影响耗散的能力的签名。
We examine the spreading of a suspension of non-Brownian spheres suspended in a Newtonian liquid on a solid substrate. We show that the spreading dynamics is well described by the classical Cox-Voinov law provided the value of the fluid viscosity that arises in the capillary number of the problem is adjusted to a value that depends on particle size and volume fraction in a non-trivial way. We demonstrate that this behavior is a signature of the ability of the particles to approach the contact line close enough to affect dissipation.
