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Updated: May 29, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Liquid-gas phase separation in confined vibrated dry granular matter
Klaus Roeller1, James P D Clewett, R M Bowley
1Max Planck Institute for Dynamics and Selforganization, Am Faßberg 17, 37077 Göttingen, Germany.
Abstract:
A new phase transition is observed experimentally in a dry granular gas subject to vertical vibration between two horizontal plates. Molecular dynamics simulations of this system allow us to investigate the observed phase separation in detail. We find a high-density, low temperature liquid, coexisting with a low-density, high temperature gas moving coherently. The importance of the coherent motion for phase separation is investigated using frequency modulation.
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