Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid

Details Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid

2005-10-05

arxiv.org/abs/cond-mat/0510102v1

J. Chem. Phys. 123, 234512 (2005)

Physics

Condensed Matter

Statistical Mechanics

9 pages, 7 figures

Scientific paper

10.1063/1.2136883

The contact values $g(\sigma,\sigma')$ of the radial distribution functions of a fluid of (additive) hard spheres with a given size distribution $f(\sigma)$ are considered. A ``universality'' assumption is introduced, according to which, at a given packing fraction $\eta$, $g(\sigma,\sigma')=G(z(\sigma,\sigma'))$, where $G$ is a common function independent of the number of components (either finite or infinite) and $z(\sigma,\sigma')=[2 \sigma \sigma'/(\sigma+\sigma')]\mu_2/\mu_3$ is a dimensionless parameter, $\mu_n$ being the $n$-th moment of the diameter distribution. A cubic form proposal for the $z$-dependence of $G$ is made and known exact consistency conditions for the point particle and equal size limits, as well as between two different routes to compute the pressure of the system in the presence of a hard wall, are used to express $G(z)$ in terms of the radial distribution at contact of the one-component system. For polydisperse systems we compare the contact values of the wall-particle correlation function and the compressibility factor with those obtained from recent Monte Carlo simulations.

Affiliated with

Also associated with

No associations

Rating

Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-250545