Thermodynamically admissible form for discrete hydrodynamics

Citation
P. Espanol et al., Thermodynamically admissible form for discrete hydrodynamics, PHYS REV L, 83(22), 1999, pp. 4542-4545
Citations number
33
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
22
Year of publication
1999
Pages
4542 - 4545
Database
ISI
SICI code
0031-9007(19991129)83:22<4542:TAFFDH>2.0.ZU;2-A
Abstract
We construct a discrete model of fluid particles according to a two generat or formalism for nonequilibrium thermodynamics. The model has the form of s moothed particle hydrodynamics including correct thermal fluctuations. A sl ight variation of the model reproduces the dissipative particle dynamics mo del with any desired thermodynamic behavior. The resulting algorithms have the following properties: mass, momentum, and energy are conserved, entropy is a nondecreasing function of time, and the thermal fluctuations produce the correct Einstein distribution function at equilibrium.