pyopensn.mesh.MeshContinuum

class pyopensn.mesh.MeshContinuum

Mesh continuum.

Wrapper of opensn::MeshContinuum.

ComputeVolumePerBlockID(self: pyopensn.mesh.MeshContinuum) → dict[int, float]

Compute volume per block ID

Returns:

Key is the block ID and the value is the computed volume

Return type:

Dict[int, float]

ExportToPVTU(self: pyopensn.mesh.MeshContinuum, file_base_name: str) → None

Write grid cells into PVTU format.

Parameters:

file_base_name (str) – Base name of the output file.

SetBlockIDFromFunction(self: pyopensn.mesh.MeshContinuum, func: Callable[[pyopensn.math.Vector3, int], int]) → None

Set block ID from a function.

Parameters:

func (Callable[[pyopensn.math.Vector3, int], int]) – Function/lambda computing new block ID from cell centroid and old block ID.

Examples

>>> # Change block ID from 0 to 1 for cells inside the unit sphere.
>>> def block_id_setter(cell_centroid, old_id):
...     if (old_id == 0) and (cell_centroid.Norm() < 1.0):
...         return 1
...     return old_id
>>> mesh.SetBlockIDFromFunction(block_id_setter)

SetBlockIDFromLogicalVolume(self: pyopensn.mesh.MeshContinuum, log_vol: opensn::LogicalVolume, block_id: int, inside: bool) → None

Set block ID’s using a logical volume.

Parameters:

• log_vol (pyopensn.logvol.LogicalVolume) – Logical volume that determines which mesh cells will be selected.

• block_id (int) – Block ID that will be assigned.

• inside (bool) – If true, the selected mesh cells are the ones whose centroids are inside the logival volume. Otherwise, the selected meshes are the ones whose centroids are outside of the logical volume.

SetBoundaryIDFromLogicalVolume(self: pyopensn.mesh.MeshContinuum, log_vol: opensn::LogicalVolume, boundary_name: str, inside: bool = True) → None

Set boundary ID’s using a logical volume.

Parameters:

• log_vol (pyopensn.logvol.LogicalVolume) – Logical volume that determines which mesh cells will be selected.

• boundary_name (str) – Name of the boundary.

• inside (bool, default=True) – If true, the selected cell facess are the ones whose centroids are inside the logival volume. Otherwise, the selected meshes are the ones whose centroids are outside of the logical volume.

SetOrthogonalBoundaries(self: pyopensn.mesh.MeshContinuum) → None

Set boundary IDs for xmin/xmax, ymin/ymax, zmin/zmax for a right parallelpiped domain.

SetUniformBlockID(self: pyopensn.mesh.MeshContinuum, mat_id: int) → None

Set block ID’s for all cells to the specified block ID.

property dimension

Number of dimensions of the mesh.