Refinement factor

Rescale the current global maximum element-size target.

Location

Mesh → Refinement → Refinement factor

Initial value: 2.

In the supported structured meshing path, a positive factor divides the global maximum size: 2 halves it and 0.5 doubles it. Multiple enabled Refinement factors accumulate. Without a finite maximum size this operation has no size to rescale; it does not apply Selection as a local refinement mask. Do not expect this feature to refine an unstructured Netgen mesh; change its size controls or use supported solution-driven adaptation instead.

Using the value

Use a factor above 1 for refinement and inspect the rebuilt mesh before solving.

Troubleshooting

If nothing changes, check the initial maximum size and competing Size controls. This operation provides no error estimate or adaptive stopping test.