METHOD AND DEVICE FOR NUMERICAL ANALYSIS OF FLOW FIELD OF NON-COMPRESSIVE VISCOUS FLUID DIRECTLY USING V-CAD DATA

摘要

A method for numerical analysis of flow field of non-compressive viscous fluid includes: a division step (A) for dividing external data (12) consisting of boundary data on the object in contact with a non-compressive viscous fluid into a plurality of cells (13) to which the boundary is orthogonal; a cell grouping step (B) for grouping the divided cells into internal cells (13a) positioned inside the object and boundary cells (13b) including boundary data; a cut point decision step (C) for obtaining cut points of the edge line of the boundary cells (13b) by the boundary data; a boundary decision step (D) for treating a polygon obtained by connecting the cut points as boundary cell internal data; and an analysis step (E) for applying the cut cell finite volume method together with the VOF method to the boundary of the flow field.