thermal properties of an impurity immersed in a granular gas of rough hard spheres

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ID: 207947
2017
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Abstract
We study in this work the dynamics of a granular impurity immersed in a low-density granular gas of identical particles. For description of the kinetics of the granular gas and the impurity particles we use the rough hard sphere collisional model. We take into account the effects of non-conservation of energy upon particle collision. We find an (approximate) analytical solution of the pertinent kinetic equations for the single-particle velocity distribution functions that reproduces reasonably well the properties of translational/rotational energy non-equipartition. We assess the accuracy of the theoretical solution by comparing with computer simulations. For this, we use two independent computer data sets, from molecular dynamics (MD) and from Direct Simulation Monte Carlo method (DSMC). Both approach well, with different degrees, the kinetic theory within a reasonable range of parameter values.
Reference Key
francisco2017epjthermal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Vega Reyes Francisco;Lasanta Antonio;Santos Andrés;Garzó Vicente
Journal utilitas mathematica
Year 2017
DOI
10.1051/epjconf/201714004003
URL
https://doi.org/10.1051/epjconf/201714004003
Keywords
physics

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