Temperature anisotropy in a driven granular gas

Meer van der, D. and Reimann, P. (2006) Temperature anisotropy in a driven granular gas. Europhysics Letters, 74 (3). pp. 384-390. ISSN 0295-5075

PDF
Restricted to UT campus only: Request a copy
319Kb

Abstract:	When smooth granular material is fluidized by vertically shaking a container, we find that the temperature in the direction of energy input always exceeds the temperature in the other directions. An analytical model is presented which shows how the anisotropy can be traced back to the inelasticity of the interparticle collisions and the collisions with the wall. For a dilute granular gas, the model compares very well with molecular-dynamics simulations. It is concluded that any non-isotropic driving of a granular gas in a steady state necessarily causes anisotropy of the granular temperature.
Item Type:	Article
Copyright:	© 2006 IOP Science
Faculty:	Science and Technology (TNW)
Research Group:	Physics of Fluids (POF)
Link to this item:	http://purl.utwente.nl/publications/61318
Official URL:	http://dx.doi.org/10.1209/epl/i2005-10552-9
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Repository Staff Only: item control page

Metis ID: 231494