Abstract
A simulation of powder compaction on two dimensional model introducing cohesion probability P' has been reported previously2).
In the present work the coordination number of a disc was taken into consideration in the process of shifting the disc to the lower layer, and another probability P" was introduced in the step of insertion of a disc into the hole created by shifting of the former disc.
The data of porosity and tapping number followed Kawakita's equation when P' was relatively large and P" small. On the other hand, Kuno's equation was applicable when P' was small and P" large.
Furthermore, comparisons between two-dimensional porosity εA and three-dimensional porosity εV were made using both the regular packing model and the random packing model.
