SideSetExtruderGenerator

Visual Example

The following 2D mesh has the right sideset extruded using a SideSetExtruderGenerator with the (1, 0.5, 0) vector.

Before: a square, with sidesets on each side.

After, the right sideset has been extruded.

Implementation details

SideSetExtruderGenerator is actually a mere wrapper of 4 other generators:

• a LowerDBlockFromSidesetGenerator to generate a block from the sideset

• a BlockToMeshConverterGenerator to generate a block with the mesh

• a MeshExtruderGenerator to extrude the new mesh

• a StitchedMeshGenerator to stitch the original mesh and the extruded mesh.

As such, the SideSetExtruderGenerator is exactly equivalent to the output of a recipe similar to the one below. If you are needing to tweak the output of SideSetExtruderGenerator, it may be preferable to use these generators instead. SideSetExtruderGenerator uses the default parameters of these sub-generators.

[Mesh<<<{"href": "../../syntax/Mesh/index.html"}>>>]
  # Note: don't change the parameters without also changing extrude_square,
  # as they should be using identical file(s) in gold
  [square]
    type = GeneratedMeshGenerator<<<{"description": "Create a line, square, or cube mesh with uniformly spaced or biased elements.", "href": "GeneratedMeshGenerator.html"}>>>
    dim<<<{"description": "The dimension of the mesh to be generated"}>>> = 2
  []
  [extrude_right]
    type = SideSetExtruderGenerator<<<{"description": "Takes a 1D or 2D mesh and extrudes a selected sideset along the specified axis.", "href": "SideSetExtruderGenerator.html"}>>>
    input<<<{"description": "The mesh we want to modify"}>>> = square
    sideset<<<{"description": "The sideset (boundary) that will be extruded"}>>> = 'right'
    extrusion_vector<<<{"description": "The direction and length of the extrusion as a vector"}>>> = '1 0.5 0'
    num_layers<<<{"description": "The number of layers in the extruded mesh"}>>> = 3
  []
[]

The input above should be equivalent to the input shown below.

[Mesh<<<{"href": "../../syntax/Mesh/index.html"}>>>]
  # Note: don't change the parameters without also changing extrude_square,
  # as they should be using identical file(s) in gold
  [square]
    type = GeneratedMeshGenerator<<<{"description": "Create a line, square, or cube mesh with uniformly spaced or biased elements.", "href": "GeneratedMeshGenerator.html"}>>>
    dim<<<{"description": "The dimension of the mesh to be generated"}>>> = 2
  []
  [lowerDblock]
    type = LowerDBlockFromSidesetGenerator<<<{"description": "Adds lower dimensional elements on the specified sidesets.", "href": "LowerDBlockFromSidesetGenerator.html"}>>>
    input<<<{"description": "The mesh we want to modify"}>>> = square
    new_block_name<<<{"description": "The lower dimensional block name to create (optional)"}>>> = "extrusions0"
    sidesets<<<{"description": "The sidesets from which to create the new block"}>>> = "right"
  []
  [separateMesh]
    type = BlockToMeshConverterGenerator<<<{"description": "Converts one or more blocks (subdomains) from a mesh into a stand-alone mesh with a single block in it.", "href": "BlockToMeshConverterGenerator.html"}>>>
    input<<<{"description": "The mesh we want to modify"}>>> = lowerDblock
    target_blocks<<<{"description": "The (list of) blocks (or 'subdomains') we wish to have moved to a new mesh (by name, not ID)"}>>> = extrusions0
  []
  [extrude]
    type = MeshExtruderGenerator<<<{"description": "Takes a 1D or 2D mesh and extrudes the entire structure along the specified axis increasing the dimensionality of the mesh.", "href": "MeshExtruderGenerator.html"}>>>
    input<<<{"description": "the mesh we want to extrude"}>>> = separateMesh
    num_layers<<<{"description": "The number of layers in the extruded mesh"}>>> = 3
    extrusion_vector<<<{"description": "The direction and length of the extrusion"}>>> = '1 0.5 0'
    bottom_sideset<<<{"description": "The boundary that will be applied to the bottom of the extruded mesh"}>>> = 'new_bottom'
    top_sideset<<<{"description": "The boundary that will be to the top of the extruded mesh"}>>> = 'new_top'
  []
  [stitch]
    type = StitchedMeshGenerator<<<{"description": "Allows multiple mesh files to be stitched together to form a single mesh.", "href": "StitchedMeshGenerator.html"}>>>
    inputs<<<{"description": "The input MeshGenerators."}>>> = 'square extrude'
    stitch_boundaries_pairs<<<{"description": "Pairs of boundaries to be stitched together between the 1st mesh in inputs and each consecutive mesh"}>>> = 'right new_bottom'
  []
[]

Input Parameters