Shearing flow of a fluid-saturated granular material

A previously developed multiphase mixture theory is used to study the motion of a fluid-saturated granular material in a conventional viscometric simple shearing apparatus. It is shown that simple shearing generally does not occur. Typically, the shearing is concentrated in the vicinity of the boundaries, and the particles concentrate in the regions of low shearing. These results are consistent with experimental observations and other analytical studies of single particle motion in shearing flows.