Numerical analysis mesh generation apparatus, numerical analysis mesh generation method, and numerical analysis generation program

A numerical analysis mesh generation method applied to a computer including a memory that stores a geometric model comprising:

• automatically selecting one surface from a plurality of surfaces constituting the geometric model as a reference surface for mesh generation;
• automatically projecting, in a predetermined direction, edges of the geometric model on the reference surface so as to generate edge lines on the reference surface, the edges located away from the reference surface;
• automatically determining an interval between edge lines on the reference surface;
• automatically grouping two or more edge lines with one of the two or more edge lines set as a representative edge line when the determining determines that the interval between the edge lines is smaller than a predetermined minimum mesh size;
• automatically generating a mesh having a specified size on the reference surface based on the edge lines grouped by the grouping;
• automatically extruding a part of the representative edge line along the predetermined direction based on distance information indicating a distance between the reference surface and a target edge of the edges which projected on the reference surface;
• and
• automatically shifting the representative edge line along the reference surface in order to shift the extruded part of the representative edge line to the target edge.

A non-transitory computer-readable storage medium having recorded thereon a numerical analysis mesh generation program allowing a computer that includes a memory which stores a geometric model to execute a process comprising:

• automatically selecting one surface from a plurality of surfaces constituting the geometric model as a reference surface for mesh generation;
• automatically projecting, in a predetermined direction, edges of the geometric model on the reference surface so as to generate edge lines on the reference surface, the edges located away from the reference surface;
• automatically determining an interval between edge lines on the reference surface;
• automatically grouping two or more edge lines with one of the two or more edge lines set as a representative edge line when the determining determines that the interval between the edge lines is smaller than a predetermined minimum mesh size;
• generating a mesh having a specified size on the reference surface based on the edge lines grouped by the grouping;
• automatically extruding a part of the representative edge line along the predetermined direction based on distance information indicating a distance between the reference surface and a target edge of the edges which projected on the reference surface;
• and
• automatically shifting the representative edge line along the reference surface in order to shift the extruded part of the representative edge line to the target edge.