# MortarPeriodicMesh

Set up an orthogonal mesh with additional dim-1 dimensional side domains for use with the Mortar method.

The MortarPeriodicMesh is an object that augments the GeneratedMesh class by adding lower dimensional mortar interface meshes along selected sides of the simulation cell. It can be used together with the MortarPeriodicity action to set up gradient periodicity.

## Input Parameters

• periodic_directionsDirections along which additional Mortar meshes are generated

C++ Type:MultiMooseEnum

Options:x y z

Description:Directions along which additional Mortar meshes are generated

### Required Parameters

• bias_x1The amount by which to grow (or shrink) the cells in the x-direction.

Default:1

C++ Type:double

Options:

Description:The amount by which to grow (or shrink) the cells in the x-direction.

• bias_z1The amount by which to grow (or shrink) the cells in the z-direction.

Default:1

C++ Type:double

Options:

Description:The amount by which to grow (or shrink) the cells in the z-direction.

• zmax1Upper Z Coordinate of the generated mesh

Default:1

C++ Type:double

Options:

Description:Upper Z Coordinate of the generated mesh

• ymax1Upper Y Coordinate of the generated mesh

Default:1

C++ Type:double

Options:

Description:Upper Y Coordinate of the generated mesh

• bias_y1The amount by which to grow (or shrink) the cells in the y-direction.

Default:1

C++ Type:double

Options:

Description:The amount by which to grow (or shrink) the cells in the y-direction.

• zmin0Lower Z Coordinate of the generated mesh

Default:0

C++ Type:double

Options:

Description:Lower Z Coordinate of the generated mesh

• ghosting_patch_sizeThe number of nearest neighbors considered for ghosting purposes when 'iteration' patch update strategy is used. Default is 5 * patch_size.

C++ Type:unsigned int

Options:

Description:The number of nearest neighbors considered for ghosting purposes when 'iteration' patch update strategy is used. Default is 5 * patch_size.

• nz1Number of elements in the Z direction

Default:1

C++ Type:unsigned int

Options:

Description:Number of elements in the Z direction

• nx1Number of elements in the X direction

Default:1

C++ Type:unsigned int

Options:

Description:Number of elements in the X direction

• ny1Number of elements in the Y direction

Default:1

C++ Type:unsigned int

Options:

Description:Number of elements in the Y direction

Default:False

C++ Type:bool

Options:

• parallel_typeDEFAULTDISTRIBUTED: Always use libMesh::DistributedMesh REPLICATED: Always use libMesh::ReplicatedMesh DEFAULT: Use libMesh::ReplicatedMesh unless --distributed-mesh is specified on the command line

Default:DEFAULT

C++ Type:MooseEnum

Options:DISTRIBUTED REPLICATED DEFAULT

Description:DISTRIBUTED: Always use libMesh::DistributedMesh REPLICATED: Always use libMesh::ReplicatedMesh DEFAULT: Use libMesh::ReplicatedMesh unless --distributed-mesh is specified on the command line

• xmax1Upper X Coordinate of the generated mesh

Default:1

C++ Type:double

Options:

Description:Upper X Coordinate of the generated mesh

• allow_renumberingTrueIf allow_renumbering=false, node and element numbers are kept fixed until deletion

Default:True

C++ Type:bool

Options:

Description:If allow_renumbering=false, node and element numbers are kept fixed until deletion

• xmin0Lower X Coordinate of the generated mesh

Default:0

C++ Type:double

Options:

Description:Lower X Coordinate of the generated mesh

• ymin0Lower Y Coordinate of the generated mesh

Default:0

C++ Type:double

Options:

Description:Lower Y Coordinate of the generated mesh

• max_leaf_size10The maximum number of points in each leaf of the KDTree used in the nearest neighbor search. As the leaf size becomes larger,KDTree construction becomes faster but the nearest neighbor searchbecomes slower.

Default:10

C++ Type:unsigned int

Options:

Description:The maximum number of points in each leaf of the KDTree used in the nearest neighbor search. As the leaf size becomes larger,KDTree construction becomes faster but the nearest neighbor searchbecomes slower.

• elem_typeThe type of element from libMesh to generate (default: linear element for requested dimension)

C++ Type:MooseEnum

Description:The type of element from libMesh to generate (default: linear element for requested dimension)

### Optional Parameters

• partitionerdefaultSpecifies a mesh partitioner to use when splitting the mesh for a parallel computation.

Default:default

C++ Type:MooseEnum

Options:default metis parmetis linear centroid hilbert_sfc morton_sfc

Description:Specifies a mesh partitioner to use when splitting the mesh for a parallel computation.

• centroid_partitioner_directionSpecifies the sort direction if using the centroid partitioner. Available options: x, y, z, radial

C++ Type:MooseEnum

Description:Specifies the sort direction if using the centroid partitioner. Available options: x, y, z, radial

### Partitioning Parameters

• nemesisFalseIf nemesis=true and file=foo.e, actually reads foo.e.N.0, foo.e.N.1, ... foo.e.N.N-1, where N = # CPUs, with NemesisIO.

Default:False

C++ Type:bool

Options:

Description:If nemesis=true and file=foo.e, actually reads foo.e.N.0, foo.e.N.1, ... foo.e.N.N-1, where N = # CPUs, with NemesisIO.

• patch_update_strategyneverHow often to update the geometric search 'patch'. The default is to never update it (which is the most efficient but could be a problem with lots of relative motion). 'always' will update the patch for all slave nodes at the beginning of every timestep which might be time consuming. 'auto' will attempt to determine at the start of which timesteps the patch for all slave nodes needs to be updated automatically.'iteration' updates the patch at every nonlinear iteration for a subset of slave nodes for which penetration is not detected. If there can be substantial relative motion between the master and slave surfaces during the nonlinear iterations within a timestep, it is advisable to use 'iteration' option to ensure accurate contact detection.

Default:never

C++ Type:MooseEnum

Options:never always auto iteration

Description:How often to update the geometric search 'patch'. The default is to never update it (which is the most efficient but could be a problem with lots of relative motion). 'always' will update the patch for all slave nodes at the beginning of every timestep which might be time consuming. 'auto' will attempt to determine at the start of which timesteps the patch for all slave nodes needs to be updated automatically.'iteration' updates the patch at every nonlinear iteration for a subset of slave nodes for which penetration is not detected. If there can be substantial relative motion between the master and slave surfaces during the nonlinear iterations within a timestep, it is advisable to use 'iteration' option to ensure accurate contact detection.

• control_tagsAdds user-defined labels for accessing object parameters via control logic.

C++ Type:std::vector

Options:

Description:Adds user-defined labels for accessing object parameters via control logic.

• enableTrueSet the enabled status of the MooseObject.

Default:True

C++ Type:bool

Options:

Description:Set the enabled status of the MooseObject.

• construct_node_list_from_side_listTrueWhether or not to generate nodesets from the sidesets (usually a good idea).

Default:True

C++ Type:bool

Options:

Description:Whether or not to generate nodesets from the sidesets (usually a good idea).

• patch_size40The number of nodes to consider in the NearestNode neighborhood.

Default:40

C++ Type:unsigned int

Options:

Description:The number of nodes to consider in the NearestNode neighborhood.

• dimThe dimension of the mesh to be generated

C++ Type:MooseEnum

Options:1 2 3

Description:The dimension of the mesh to be generated