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A Langevin Description for Driven Granular Gases

Published online by Cambridge University Press:  18 July 2011

P. Maynar  and
M. I. García de Soria
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Abstract

The study of the fluctuations in the steady state of a heated granular system is reviewed. A Boltzmann-Langevin description can be built requiring consistency with the equations for the one- and two-particle correlation functions. From the Boltzmann-Langevin equation, Langevin equations for the total energy and the transverse velocity field are derived. The existence of a fluctuation-dissipation relation for the transverse velocity field is also studied.

Keywords

kinetic theoryBoltzmann equationgranular gaseshydrodynamics
Type
Research Article
Information
Mathematical Modelling of Natural Phenomena , Volume 6 , Issue 4: Granular hydrodynamics , 2011 , pp. 87 - 117
Copyright
© EDP Sciences, 2011

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