FLUID SIMULATION PROGRAM, FLUID SIMULATION METHOD AND FLUID SIMULATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a fluid simulation program, a fluid simulation method and a fluid simulation device with which it is possible to secure the convergence of solutions in a particle method.;SOLUTION: The fluid simulation program causes an extracting process, a finding process and a calculating process to be executed by a computer. The extracting process extracts, on the basis of position information included in the particle data of each particle at a prescribed time, a particle whose distance from a first particle is less than or equal to a prescribed value as a second particle from among wall boundary particles on the boundary with a wall, the first particle being the one whose distance from a fluid particle is less than or equal to a prescribed value. The finding process sets, on the basis of the extracted first and second particles, the boundary condition of a pressure Poisson equation that finds the pressure of each particle and finds the pressure acting on each particle. The calculating process calculates the particle data of each particle at the next time on the basis of the found pressure.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2019,JPO&INPIT