AREA DIVIDING METHOD FOR NUMERICAL SIMULATION

摘要

PURPOSE:To execute a numerical calculation of high density by converting a grating of a normal space to an ununiform grating in accordance with whether the nodal point distribution on a boundary side is rough or dense, and mapping it in a real space. CONSTITUTION:In accordance with whether the distribution of a nodal point 41 of boundary sides L1-L4 is rough or dense, a grating interval is controlled and an ununiform normal space grating 43 in which the grating interval in the vicinity of the side L4 in which an abnormal part exists is made minute is formed, and by using said grating, real space mapping is executed. A generated mesh 45 by this mapping conversion goes to parallel to the side L4 in both the vicinity of the side and the vicinity of the center part and no bulge is generated, rough/dense information of the grating nodal point of the boundary side can be reflected faithfully on a rough/dense control of a nodal point and a mesh generated in the inside of the area, and a high accuracy numerical calculation can be executed.