Page 66 - ansys

w Drag a Contact Region object onto the Mesh object, then in the Details View, under Type, choose
Relevance for a relative size (and enter a value or use the slider), or Element Size (and enter a value)
for an absolute size.

Refinement Control

Refinement controls specify the maximum number of meshing refinements that are applied to the
initial mesh. Refinement controls are valid for faces, edges, and vertices.

Refinement controls are not available when using the Multi Zone, Patch Independent Tetra, or Multi
Zone Quad/Tri mesh methods, or assembly meshing algorithms. If using Multi Zone as part of
Automatic mesh method, Refinement behaves similar to the Sweep mesh method.

In the following scenarios, the refinement control is automatically suppressed when used with
inflation:
w When automatic inflation (either Program Controlled or All Faces in Chosen Named Selection is
used with refinement in the same model
w When local inflation is used with refinement in the same body or in the same part

To use refinement controls, click Mesh on the Tree Outline, and right-click to view the menu. Select
Insert> Refinement. You can also click Mesh on the Tree Outline, and select the Mesh Control button on
the Context Toolbar. Select Refinement.
In the Details View, specify a Refinement number between 1 and 3, where 1 provides minimal
refinement, and 3 provides maximum refinement. If you attach several controls to the same entity, the
last control applied takes precedence.

Some refinement controls can override or affect other refinements that are on connected topology. A
face refinement control overrides a refinement control on any of the face's edges or vertices. An edge
refinement control overrides a refinement control on either of the edge's vertices. Basically, a
refinement control will lower the value of an overridden control by its own value. For example,
consider a face with a refinement control of 1 and one of the face's edges with a refinement control of 2.
One of the edge's vertices has a refinement control of 2. In this example, the face control reduces the
value of the edge control by 1. It also reduces the value of the vertex control by 1. The edge control now
has a value of 1, so it reduces the vertex's control by 1. Now the vertex has a value of zero, so it has no
effect.

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