SLOW DENSE GRANULAR FLOWS AS A SELF INDUCED PROCESS

Olivier Pouliquen (1) , Yoel Forterre (1) , Stephane Le Dizes (2)

1 IUSTI - Institut universitaire des systèmes thermiques industriels
2 IRPHE - Institut de Recherche sur les Phénomènes Hors Equilibre

A simple model is presented for the description of steady uniform shear flow of granular material. The model is based on a stress fluctuation activated process. The basic idea is that shear between two particles layers induces fluctuations in the media that may trigger a shear at some other position. Based on this idea a minimum model is derived and applied to different configurations of granular shear flow.

Domaines: Physique [physics]; Sciences de l'ingénieur [physics]

Olivier Pouliquen, Yoel Forterre, Stephane Le Dizes. SLOW DENSE GRANULAR FLOWS AS A SELF INDUCED PROCESS. Advances in Complex Systems (ACS), 2001, 4. ⟨hal-01432239⟩