Including wall faces in a swept mesh between bodies

When you use the 3D Swept Mesh command with the Type set to Automatic Between or Manual Between options, the software generates a mesh between a source and a target face in different bodies. You can define the wall or side faces for the swept mesh to follow between the bodies.

The following graphic shows a simple example of the inclusion of wall faces. (1) shows the 2D mesh on the source face with the target face highlighted in orange. (2) shows the three selected wall faces highlighted in yellow. (3) shows the resulting hexahedral mesh on the geometry.

Note:

With the Automatic Between and Manual Between options, the source and target faces should not be located on the same solid body. If the source and target faces are part of the same solid body, use the Multi Body-Infer Target or Until Target options instead to generate the hexahedral mesh.

Selecting wall faces manually or automatically

Use the Wall Selection options in the 3D Swept Mesh dialog box to select the wall faces manually. The faces you select as wall faces can be either meshed or unmeshed. However, if a wall face has an existing 2D mesh, that mesh will determine the number of elements the software sweeps along that wall face to the target face and not the value you specify in the Number of Layers box.

You can also click the Automatic Wall Selection button to have the software select the wall faces automatically. If you use the Automatic Wall Selection option, the software selects all faces that share edges with both the source and target faces.

You can also use the Dynamic Wall Selection option to have the software automatically add all faces that share edges with both the source and target faces to the selected wall faces. With the Dynamic Wall Selection option, if you change the specified source or target faces, the software automatically updates the selected wall faces.

Rules for including wall faces in a manual swept mesh

• The source face must be meshed and cannot have a status of Update Pending.

• The target face must have the same number of edges as the source face.

• The wall faces must be stitched to both the specified source and target faces.

• You cannot use the Automatic Between and Manual Between options to sweep elements between meshes that do not have any associated geometry. You must use the Face from Mesh command to create new polygon faces from those elements before you can use the Automatic Between and Manual Between options.

• You must divide cylindrical faces before you can select them as wall faces. Use the Split Face command to divide the cylindrical faces.

Where do I find it?

Application	Pre/Post
Prerequisite	An active FEM file
Command Finder	3D Swept Mesh
Menu	Insert→Mesh→3D Swept Mesh

Learn more

Automatic Between and Manual Between meshes

Manually sweeping a mesh through a void in a body

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Including wall faces in a swept mesh between bodies, Simcenter 3D 2021.1 Series

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