| Issue |
Europhys. Lett.
Volume 46, Number 5, June I 1999
|
|
|---|---|---|
| Page(s) | 613 - 616 | |
| Section | Physics of gases, plasmas, and electrical discharges | |
| DOI | https://doi.org/10.1209/epl/i1999-00308-1 | |
| Published online | 01 September 2002 | |
Thermalization of a particle by dissipative collisions
1
Institut de Physique Théorique, Ecole Polytechnique Fédérale
de Lausanne CH-1015, Lausanne, Switzerland
2
Institute of Theoretical Physics, University of Warsaw Hoża 69,
00 681 Warsaw, Poland
Received:
4
November
1998
Accepted:
30
March
1999
One considers the stationary state of a test particle immersed in a homogeneous fluid in equilibrium at temperature T, undergoing dissipative collisions with the fluid particles. It is shown that the corresponding linear Boltzmann equation still possesses a stationary Maxwellian velocity distribution, with an effective temperature smaller than T. This effective temperature is explicitly given in terms of the restitution parameter and the masses.
PACS: 51.10.+y – Kinetic and transport theory of gases / 44.90.+c – Other topics in heat transfer
© EDP Sciences, 1999
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