| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid simulation method remarkably reducing the calculation time in fluid simulation using a finite difference method. SOLUTION: When air current in an analytic space is calculated by a finite difference method using a fine mesh, the calculation of air current is carried out using coarse mesh having a lattice spacing wider than that of the fine mesh in a short time, the calculation results are interpolated to obtain an initial value of each lattice point, and calculation of air current using the fine mesh is carried out.
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