FLUID BEHAVIOR PREDICTION APPARATUS AND FLUID BEHAVIOR PREDICTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To compatibly achieve improvement in calculation accuracy when predicting behavior of fluid and reduction in a calculation load.SOLUTION: A fluid behavior prediction device includes: a discrete solver calculation unit 20 for calculating behavior of fluid by a discrete solver; an approximate solver calculation unit 24 for calculating the behavior of the fluid by an approximate solver; and a solver changeover unit 26 that, when a physical quantity calculated by a physical quantity calculation unit 22 for calculating a physical quantity related to displacement of the fluid by calculating the discrete solver by the discrete solver calculation unit 20, is a threshold or less, changes the calculation of the behavior of the fluid to the approximate solver calculation unit 24.SELECTED DRAWING: Figure 2