Frictional-collisional regime for granular suspension flows down an inclined channel

Ancey, Evesque
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引用次数: 63

Abstract

Here granular suspensions refer to very concentrated suspensions of particles within a Newtonian fluid. Under certain conditions given in the paper, the bulk stresses mainly result from the combination of frictional and collisional interactions at the particle scale. The corresponding flow regime is called the frictional-collisional regime. The constitutive equation adapted to this regime is not well known. We propose a constitutive model based on the balance between frictional and collisional interactions. We have applied this model to granular flow down an inclined channel. It is shown that the mass flow rate is proportional to the flow depth.

颗粒状悬浮液沿倾斜通道流动的摩擦碰撞状态
这里的颗粒悬浮物是指牛顿流体中非常浓缩的颗粒悬浮物。在本文给出的一定条件下,颗粒尺度上的体应力主要是摩擦和碰撞共同作用的结果。相应的流态称为摩擦-碰撞流态。适用于这种情况的本构方程并不为人所熟知。我们提出了一个基于摩擦和碰撞相互作用平衡的本构模型。我们已将此模型应用于沿倾斜通道流下的颗粒流。结果表明,质量流量与流动深度成正比。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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