Nonlinear hydrodynamical approach to granular materials.

@article{Hill2001NonlinearHA,
  title={Nonlinear hydrodynamical approach to granular materials.},
  author={Scott A. Hill and Gene F. Mazenko},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2001},
  volume={63 3 Pt 1},
  pages={031303}
}
We propose a nonlinear hydrodynamical model of granular materials. We show how this model describes the formation of a sandpile from a homogeneous distribution of material under gravity, and then discuss a simulation of a rotating sandpile which shows, in qualitative agreement with experiment, a static and dynamic angle of repose.