Abstract
A particle dynamic simulation is useful to estimate powder characteristics and to understand the particle behavior under compaction. As a model particle a circular and a spherical particle are used in calculation. However, a shape of real particle is not circular or spherical. To estimate the powder characteristics quantitatively by particle dynamic simulation, it is of great importance that the particle is modeled as non-circular and spherical shape. In this study, we modeled the ferromagnetic ellipsoidal particle using four arcs. We show how to define the particle using arcs and how the ellipsoidal particle is magnetized in the magnetic field. We simulated how the easy axis of the particle is aligned under isostatic compaction. Thus we make clear the behavior of noncircular particle under compaction in the magnetic field.
