Computer simulation of the packing of hue particles

Citation
Ry. Yang et al., Computer simulation of the packing of hue particles, PHYS REV E, 62(3), 2000, pp. 3900-3908
Citations number
63
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063-651X → ACNP
Volume
62
Issue
3
Year of publication
2000
Part
B
Pages
3900 - 3908
Database
ISI
SICI code
1063-651X(200009)62:3<3900:CSOTPO>2.0.ZU;2-4
Abstract
This paper presents a simulation study of the packing of uniform fine-spher ical particles where the van der Waals force is dominant. It is shown that porosity increases with the decreases of particle size from about 100 to 1 mu m and the simulated relationship can match the literature data well. The packing structure or fine particles is qualitatively depicted by illustrat ive pictures and quantified in terms of radial distribution function, angul ar distribution, and coordination number. The results indicate that in line with the increase in porosity, the first component of the split second pea k and then the other peaks beyond the second one in the radial distribution function gradually vanish; the first peak becomes narrower, with a sharp d ecrease to the first minimum. As particle size decreases, the peaks at 120 degrees and then 60 degrees in the angular distribution will gradually vani sh. the coordination number distribution shifts to the left and becomes nar rower. The mean coordination number can decrease to a value as low as two f or 1 mu m particles, giving avery loose and chainlike structure. The interp article forces acting on individual particles in a stable packing are analy zed and shown to be related to the packing properties.