| Issue |
Europhys. Lett.
Volume 66, Number 6, June 2004
|
|
|---|---|---|
| Page(s) | 805 - 811 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2004-10039-3 | |
| Published online | 01 June 2004 | |
Heat flux and upper boundary condition in an open fluidized granular gas
Física Teórica, Universidad de Sevilla - Apartado de Correos 1065 E-41080 Sevilla, Spain
Received:
1
March
2004
Accepted:
21
April
2004
The transport coefficient coupling heat flux and density gradient in a granular gas is measured by taking advantage of the existence of a minimum in the temperature profile of an open vibrated granular system. The results from particle simulations are found to be in good agreement with the theoretical predictions derived from the Boltzmann equation. The accuracy of a boundary condition requiring the hydrodynamic heat flux to vanish at infinite height is discussed, and shown to be consistent with the simulation data.
PACS: 45.70.-n – Granular systems / 51.10.+y – Kinetic and transport theory of gases
© EDP Sciences, 2004
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