extrudeToRegionMesh.C File Reference

Extrude faceZones (internal or boundary faces) or faceSets (boundary faces only) into a separate mesh (as a different region). More...

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Detailed Description

Extrude faceZones (internal or boundary faces) or faceSets (boundary faces only) into a separate mesh (as a different region).

Original source file extrudeToRegionMesh.C

- used to e.g. extrude baffles (extrude internal faces) or create liquid film regions.

• if extruding internal faces:
  • create baffles in original mesh with mappedWall patches
• if extruding boundary faces:
  • convert boundary faces to mappedWall patches
• extrude edges of faceZone as a <zone>_sidePatch
• extrude edges inbetween different faceZones as a (nonuniformTransform)cyclic <zoneA>_<zoneB>
• extrudes into master direction (i.e. away from the owner cell if flipMap is false)

Internal face extrusion
-----------------------

    +-------------+
    |             |
    |             |
    +---AAAAAAA---+
    |             |
    |             |
    +-------------+

    AAA=faceZone to extrude.


For the case of no flipMap the extrusion starts at owner and extrudes
into the space of the neighbour:

      +CCCCCCC+
      |       |         <= extruded mesh
      +BBBBBBB+

    +-------------+
    |             |
    | (neighbour) |
    |___CCCCCCC___|       <= original mesh (with 'baffles' added)
    |   BBBBBBB   |
    |(owner side) |
    |             |
    +-------------+

    BBB=mapped between owner on original mesh and new extrusion.
        (zero offset)
    CCC=mapped between neighbour on original mesh and new extrusion
        (offset due to the thickness of the extruded mesh)

For the case of flipMap the extrusion is the other way around: from the
neighbour side into the owner side.


Boundary face extrusion
-----------------------

    +--AAAAAAA--+
    |           |
    |           |
    +-----------+

    AAA=faceZone to extrude. E.g. slave side is owner side (no flipmap)

becomes

      +CCCCCCC+
      |       |         <= extruded mesh
      +BBBBBBB+

    +--BBBBBBB--+
    |           |       <= original mesh
    |           |
    +-----------+

    BBB=mapped between original mesh and new extrusion
    CCC=polypatch


Notes:
    - when extruding cyclics with only one cell inbetween it does not
      detect this as a cyclic since the face is the same face. It will
      only work if the coupled edge extrudes a different face so if there
      are more than 1 cell inbetween.

Definition in file extrudeToRegionMesh.C.