We use a momentum balance to interpret numerical simulations of dense, steady, fully-developed inclined granular flows of spheres on an erodible base confined between flat frictional side walls. We observe an exponential profile of mean volume fraction in the direction perpendicular to the base and suggest a scaling for its characteristic length. We also predict volume fraction and mean velocit...

Collaboration between organizations raises significant knowledge management issues, especially in software development of complex projects, in which both product and process are themselves knowledge. While research has examined direct, explicit flows of knowledge within project aspects, or forward between aspects, there is less investigation of the need and support for backward, implicit or eme...

We present an overview of the lattice Boltzmann method (LBM), a parallel and efficient algorithm for simulating single-phase and multiphase fluid flows and for incorporating additional physical complexities. The LBM is especially useful for modeling complicated boundary conditions and multiphase interfaces. Recent extensions of this method are described, including simulations of fluid turbulenc...