Work

Non-linear steady states in dense granular flows

Year: 2008

Type: preprint

Abstract: 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.

Source: arXiv (Cornell University)

Authors: Daniel Bonamy, Pierre-Henri Chavanis, F. Daviaud, B. Dubrulle, Mathieu Renouf

Institution: Laboratoire de Mécanique des Contacts et des Structures

Language: English

Topic: Granular flow and fluidized beds

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1672521601

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