Continuum theory of partially fluidized granular flows

A continuum theory of partially fluidized granular flows is developed. The theory is based on a combination of the equations for the flow velocity and shear stresses coupled with the order parameter equation which describes the transition between flowing and static components of the granular system. We apply this theory to several important granular problems: avalanche flow in deep and shallow inclined layers, rotating drums and shear granular flows between two plates. We carry out quantitative comparisons between the theory and experiment.Comment: 28 pages, 23 figures, submitted to Phys. Rev.

Posner, Richard

International audiencePosner is one of the main contributors to what is known as "economic analysis of law". In this entry, we restrict our presentation to a few controversial claims he made (efficiency, wealth-maximization, Hicks-Kaldor, judicial decision making)