Mesh — Cell size

Mesh → Cell size

Set the global target cell size in the Mesh generation panel and review the approximate cell count before generating the volume mesh.

In the Mesh tab, find Cell size in the Mesh generation panel. Review the initial size estimated from the exported geometry volume.
Enter a positive Cell size in the displayed length unit. Approx. cells updates as you edit the value; a smaller size increases the estimated count. Use local refinement where smaller cells are needed instead of reducing the size everywhere.
Review Approx. cells to assess the mesh size, then generate the mesh and check its actual cell count and quality.

Input or value	Meaning	Units
Cell size	Target global mesh spacing; a smaller value usually produces more cells.	m (SI); ft (Imperial)
Approx. cells	Estimated cell count calculated from the exported geometry volume divided by the cube of the global cell size. The example shows about 100,050 cells at a size of 0.0304 m.	Cell count

Approx. cells is an estimate. Local refinement and boundary layers can increase the final count; check the actual count after generation.
A dash (—) is shown when a valid geometry volume or positive cell size is unavailable. Export closed geometry and enter a positive size to obtain an estimate.
The initial size is a starting point, not an accuracy guarantee. Smaller cells increase runtime and memory requirements. Demo is limited to 250,000 cells.