| 摘要 |
In a motion simulation using a particle method, a random motion is prevented from being generated from a large-scale motion by a particle swarm. A storage unit 402 stores a calculation formula including a disturbance term added to a position, a velocity, an acceleration, a pressure, or a density of each of a plurality of particles at a current time, for determining the position, the velocity, and the density (position and the like) at the current time from a position and the like of each of the particles at a preceding time. A processing unit 401 determines the value of the disturbance term, and determines the position and the like of each of the particles at the current time by using a position and the like at an initial time as the position and the like at the preceding time, and by applying the value of the disturbance term to the calculation formula. Then, the processing unit 401 repeats a process for determining the value of the disturbance term of each of the particles and the position and the like at the current time by using the determined position and the like as the position and the like at the preceding time. An output unit 403 outputs the position of each of the particles at each of a plurality of times subsequent to the initial time as a simulation result. |
