Powder behavior analysis apparatus, powder behavior analysis method, and computer program

摘要

PPROBLEM TO BE SOLVED: To analyze behavior of powder in a space partitioned by a boundary surface with high accuracy by a distinct element method, while taking into consideration the influence received by particles from the wall surface of the boundary. PSOLUTION: In this powder behavior analyzing device, a plurality of virtual particles, fixed while being restricted in the degrees of freedom of movement are placed at the boundary, before performing behavior simulation of analyzed particles. Here, the surface roughness of the wall surface is represented by making the property values of the virtual particles agree with the property value of the wall surface of the boundary. Thus the behavior of the analyzed particles can be analyzed with high accuracy, while recreating the effect received by the particles collided with the boundary from the surface roughness of the wall surface, by determining the mechanical interaction among the particles, on the basis of the distinct element analysis. PCOPYRIGHT: (C)2006,JPO&NCIPI