| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the calculation load of an interaction force between particles and the boundary of the movement of particles in a particle behavior analysis device. <P>SOLUTION: Each wall face being the object of contact determination is recognized as an analysis object, and each of them is distributed in association with the determined positions of a force matrix. For example, the force matrix of four lines and four columns is used for calculating 32 particles by 16 pieces of processors (nodes #0 to #15) in parallel. Each two of eight walls are distributed to the processors. The node #3 shares walls #0 and #1, and the node #7 shares the walls #2 and #3, and the node #11 shares the walls #4 and #5, and the node #15 shares the walls #6 and #7. The eight walls are clearly distributed to the determined positions of the force matrix of four lines and four columns, and analysis following a force division method is performed. Even when the surface shape becomes complicated, segments or circular-arcs specifying the walls configuring the object surface are numbered, and distributed in association with the force matrix, so that the interaction calculation of particles and the object surface can be reduced. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
