Non-linear steady states in dense granular flows - Laboratoire de Physique Théorique - LPT Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2008

Non-linear steady states in dense granular flows

Résumé

General conservation equations are derived for 2D dense granular flows within the Boussinesq approximation. Assuming that forcing and dissipation equilibrate on average, the relationships between local granular temperature, vorticity and stream function are shown to be characterized by two functions. Once these two functions are known, the whole velocity and temperature fields can be deduced. We checked these predictions on steady surface flows in rotating drum simulated through the Non-Smooth Contact Dynamics methods. Also, we briefly discuss some possible ways to derive these two functions using statistical mechanics.
Fichier principal
Vignette du fichier
upload.pdf (5.54 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00260015 , version 1 (02-03-2008)
hal-00260015 , version 2 (05-03-2016)

Identifiants

Citer

Daniel Bonamy, Pierre-Henri Chavanis, François Daviaud, Bérengère Dubrulle, Mathieu Renouf. Non-linear steady states in dense granular flows. 2008. ⟨hal-00260015v1⟩
271 Consultations
127 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More