pyoomph.meshes.meshdatacache module

class pyoomph.meshes.meshdatacache.MeshDataCartesianExtrusion(n_segments=32, default_length=1, phase=0.0, apply_k_mode_expansion=True, use_k_for_length=True, numperiods=1)[source]

Bases: MeshDataCacheOperatorBase

Can be added as operator to MeshFileOutput to extrude the mesh in the z-direction. Most useful combined with MeshDataCombineWithEigenfunction and Cartesian normal mode stability analysis.

Parameters:

  • n_segments (int) – Number of segments in the z-direction.

  • default_length – Default length of the extrusion (when no wave number is available).

  • phase (float) – Phase of the extrusion to start with.

  • apply_k_mode_expansion (bool) – If True, the extrusion will consider the exp(i*k*z) factor of the eigenfunction.

  • use_k_for_length (bool) – If True, the length of the extrusion will be determined by the wave number (if available, otherwise default_length).

  • numperiods (float) – Number of periods to extrude (in terms of either default_length or 2*pi/k).

class pyoomph.meshes.meshdatacache.MeshDataCombineWithEigenfunction(eigenindex, eigen_prefix_real='EigenRe_', eigen_prefix_imag='EigenIm_', eigen_prefix_merged='Eigen_', add_eigen_to_mesh_positions=False)[source]

Bases: MeshDataCacheOperatorBase

Can be added as operator to MeshFileOutput to combine the solution with the eigenfunction data. Both will be written to the same file and can be postprocessed in e.g. Paraview.

Parameters:

  • eigenindex (Union[int, Sequence[int]]) – Index of the eigenfunction to combine with the solution. Can be a single index or a list of indices.

  • eigen_prefix_real (str) – Prefix for the real part of the eigenfunction data.

  • eigen_prefix_imag (str) – Prefix for the imaginary part of the eigenfunction data.

  • eigen_prefix_merged (str) – Prefix for the merged eigenfunction data.

  • add_eigen_to_mesh_positions – If True, the eigenfunction data will be added to the mesh positions.

class pyoomph.meshes.meshdatacache.MeshDataRotationalExtrusion(n_segments=32, angle=6.283185307179586, start_angle=0.0, rotate_eigendata_with_mode_m=True)[source]

Bases: MeshDataCacheOperatorBase

Can be added as operator to MeshFileOutput to extrude the mesh along the azimuthal phi-coordinate. Most useful combined with MeshDataCombineWithEigenfunction and azimuthal normal mode stability analysis.

Parameters:

  • n_segments (int) – Number of segments to extrude the mesh to.

  • angle (float) – Angle to extrude the mesh to. If larger than 2*pi, it will be cut off at 2*pi.

  • start_angle (float) – Angle to start the extrusion at.

  • rotate_eigendata_with_mode_m (bool) – If True, the eigendata will be rotated with the azimuthal mode number m. This is useful for azimuthal normal mode stability analysis.