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Correlated motion of two particles in a dense fluid of hard rods

โœ Scribed by B. Gaveau; M. Moreau; J. Piasecki

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
645 KB
Volume
237
Category
Article
ISSN
0378-4371

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โœฆ Synopsis

An exact equation describing the stochastic motion of a droplet of neighbouring equal mass hard points with velocities _+ c, immerzed in a hard point fluid, is derived. The derivation generalizes Resibois' idea originally applied to the study of self-diffusion. The explicit solution for a two-particle droplet is obtained, showing a rapid relaxation of the interparticle distance to the Poisson distribution, sqperposed on a slow diffusive motion of the centre of mass of the two particles. An approximate description of the dynamics of N-particle droplets (N > 2) is proposed.

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