Pattern Formation in the Inhomogeneous Cooling State of Granular Fluids
Subir K. Das, Sanjay Puri
TL;DR
This paper investigates the complex pattern formation in granular gases during the inhomogeneous cooling state using event-driven simulations, highlighting similarities with phase ordering systems.
Contribution
It introduces detailed simulation results on the morphology of density and velocity fields in granular gases, revealing analogies with phase ordering phenomena.
Findings
Granular gases develop complex density and velocity patterns during cooling.
The observed patterns strongly resemble phase ordering systems with conserved order parameters.
Simulation results provide new insights into nonlinear pattern formation in granular media.
Abstract
We present results from comprehensive event-driven (ED) simulations of nonlinear pattern formation in freely-evolving granular gases. In particular, we focus on the the morphologies of density and velocity fields in the inhomogeneous cooling state (ICS). We emphasize the strong analogy between the ICS morphologies and pattern formation in phase ordering systems with a globally conserved order parameter.
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