***auto_adaptation#

Description#

On going work …

This command drives an automatic mesh adaptation procedure during a computation without stopping it. The auto_adaptation syntax is mainly divided into:

  • mesher commands controlling the remesh process.

  • timing commands that trigger the automatic remeshing.

  • transfer commands that specify how to transfer data between the original and the modified mesh.

Syntax#

The command has the following syntax:

***auto_adaptation \(~\,\) **remeshing_trigger criterion \(~\,\) **mesher_commands [ **frequency frequency-options ] [ **do_transfer ] [ **use_deformed_mesh ] [ **do_it_again_after_remesh ] [ **output_after_remesh ]

remeshing_trigger

activates remeshing when a quantity of interest is higher than a given threshold. For now, only one criterion is available :

**remeshing_trigger global_error **threshold double-value **estimator_name error-estimator-name

**mesher_commands

can define initial mesh modifications, remeshing options and modifications of the adapted mesh. See mesher for available commands.

**frequency

used to trigger the remeshing process, for more sub-options see output.

**do_transfer

activates the transfer of all nodal and integration points fields computed on the initial mesh to the adapted one.

**use_deform_mesh

deforms the mesh before transfer. By default, the initial configuration is used.

**output_after_remesh

when used, the result of the transfer.

**do_it_again_after_remesh

when used, the current increment is recomputed on the new mesh.

Example#

***auto_adaptation
  **do_it_again_after_remesh
  **output_after_remesh
  **frequency *increment 1
  **remeshing_trigger global_error
   *threshold .1
   *estimator_name relative_energy_error_hole

 **mmg3d
  *min_size  .01
  *max_size  4.
  *verbose   10
  *hgrad 2.
  *hausd 1.
  *preserve_elsets_start_with eset
  *preserve_bsets right front left
  *corners_start_with corn
  *metric uniform_from_field
   field    relative_energy_error_hole
   accuracy 0.1
  *output_mesher_files