Flow of dense granular material : towards simple constitutive laws

  title={Flow of dense granular material : towards simple constitutive laws},
  author={Olivier Pouliquen and Claire Cassar and Pierre Jop and Yoel Forterre and Maxime Nicolas},
Recent experiments and numerical simulations of dry granular flows suggest that a simple rheological description in terms of a friction coefficient varying both with shear rate and pressure through a dimensionless inertial number, may be sufficient to capture the major properties of granular flows. In this paper we first present the empirical consitutive laws and their interpretation using dimensional analysis, before analysing the prediction for differents flows configurations. The successes… CONTINUE READING

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