Hydrodynamics of thermal granular convection

Details Hydrodynamics of thermal granular convection Hydrodynamics of thermal granular convection

2001-10-03

arxiv.org/abs/nlin/0110003v2

Nonlinear Sciences

Pattern Formation and Solitons

4 pages, 4 EPS figures, some details added

Scientific paper

10.1103/PhysRevE.65.030301

A hydrodynamic theory is formulated for buoyancy-driven ("thermal") granular convection, recently predicted in molecular dynamic simulations and observed in experiment. The limit of a dilute flow is considered. The problem is fully described by three scaled parameters. The convection occurs via a supercritical bifurcation, the inelasticity of the collisions being the control parameter. The theory is expected to be valid for small Knudsen numbers and nearly elastic grain collisions.

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