PROBLEM TO BE SOLVED: To realize particle behavior simulation for shortening a time to calculate the behaviors of a plurality of particles by using a discrete element method under the consideration of the influence of an adhesive force. SOLUTION: A particle behavior simulation device 10 includes: a contact force specification unit 13 for, when defining a spring constant in the case of expressing a contact force working on particles when the particles are brought into contact with each other with a spring model as kr and the adhesive force of the mutual particles as Far, calculating a corrected contact force based on the spring model by using a correction spring constant kd which is smaller than the spring constant kr; and a behavior calculation unit 12 for calculating the behaviors of the plurality of particles by a discrete element method by using the corrected contact force as a contact force, and by using a corrected adhesive force Fad whose value is made smaller than the adhesive force Far in accordance with the rate of the spring constant kr to the corrected spring constant kd as an adhesive force. COPYRIGHT: (C)2012,JPO&INPIT
