| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To shorten time required for computation, while reproducing a phenomenon also by means of continuum approach, when a fluidized state of particles is analyzed, for the phenomenon which has been reproduced thus far by means of a distinct element method. <P>SOLUTION: A CPU 11 sets a non-"0" constant as a relative viscosity coefficient, particle size, a coefficient which represents friction characteristics among particles, density, translation motion speed, and initial value of a rotary motion speed for storing them in a RAM 13. The CPU 11 computes a translation viscosity coefficient by using the coefficients, the density, the translation motion speed, the rotary motion speed and the spatial differential values of the translating motion speed and speed of rotational motion, and computes a rotary viscosity coefficient by using the translation viscosity coefficient. Then, the CPU 11 computes the temporal variations of the density, translating motion speed and the speed of rotational motion, respectively, by using the set values and the computed values, and then computes the values of these three state quantities, after a prescribed time has elapsed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
