A non-cohesive powder leads to a regular flow, while a cohesive powder leads to an intermitted flow. Thus, a dynamic cohesive index around zero corresponds to a non-cohesive powder. Consequently ...
The drum is a horizontal cylindrical with transparent sidewalls and it is half-filled with the powder sample. The drum rotates about its axis at an angular velocity varying from 2 to 70 rpm. For each ...
A heap is created when a powder is poured onto a surface. It is widely known that both the heap shape and the repose angle strongly rely on grain properties. Specifically, a non-cohesive powder ...