Abstract
The author's theory in the previous paper is extended and compared with experimental observations. The material is assumed to consist of cohesionless rigid spheres of uniform size and weight, and interparticle friction and collisions are assumed to take place. The velocity fluctuations of the particles are determined by equations of state under the assumption of local equilibrium. A simple microscopic model and an equivalence principle of particle interactions are utilized. The analysis of the flow on an inclined plane reveals that various experimental facts such as the powerr law and the dilatation and acceleration of the upper layer are well accounted for by the present theory.
