Gambit -- USING THE MODELING TOOLS

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Size functions allow you to control the size of mesh intervals for edges and

mesh elements for faces or volumes. Size functions are similar to boundary

layers in that they control the mesh characteristics in the proximity of the entities to which they are attached. They differ from boundary layers with respect

to the manner in which they are defined and the manner in which they control

the mesh. Whereas boundary layers prescribe specific mesh patterns and the

sizes of mesh elements within those patterns, size functions control the following properties:

• Maximum mesh-element edge lengths (fixed-type size function)

• Angles between normals for adjacent mesh elements (curvature-type

size function)

• Number of mesh elements employed in the gaps between two geometric entities (proximity-type size function)

The following sections describe the GAMBIT commands used to create, modify, summarize, and delete size functions.