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Abstract:
Two-dimensional driven granular matter exhibits a number of nonequilibrium steady
states such as \undulations", \Leidenfrost eect" and \convection rolls" that have been
found both in experiments and molecular dynamics simulations. We study this system
by solving the granular Navier-Stokes equations and employing direct numerical simulations.
The Leidenfrost eect is reproduced and for the rst time, convection rolls are
observed in a hydrodynamic model of granular matter. Classiers are developed for distinguishing
the nonequilibrium steady states in the continuum representation of elds.
The data is arranged according to two dimensionless control parameters and combined
into a phase diagram. Lastly, the comparison to previous work on the subject is drawn.
