Miscellaneous Boundary Condition Commands

Delete

The BC delete keyword combination is used to delete boundary conditions. The current list of all entities that can be deleted using this command were shown in Table 1. Trelis currently has no ‘undo’ command to ‘undelete’ a boundary condition deletion.

To delete a boundary condition

  1. On the Command Panel, click on FEA BCs or CFD BCs.
  2. Click on any option from the Entity menu.
  3. Click on the Delete action button.
  4. Enter the appropriate settings.
  5. Click Apply.

Delete {bc_type} [<id-range>|All]

Delete Boundary Conditions

Every set (and boundary condition within them) can be deleted at once by typing delete boundary conditions. This command will delete all boundary conditions from your model.

List

The List keyword combination is used to list boundary conditions. The current list of all entities that can be listed using this command was shown in Table 1. Cubit’s parser can evaluate boundary conditions given the entities they act on. For example, "List pressure in surface 1" will list all pressures that act on Surface 1.

To list boundary conditions

  1. On the Command Panel, click on FEA BCs or CFD BCs.
  2. Click on any option from the Entity menu except Contact Pair and Set.
  3. Click on the List action button.
  4. Enter the appropriate settings.
  5. Click Apply.

List {bc_type} [<id-range>]

List Boundary Conditions

Every set (and boundary condition within them) may be listed at once by typing list boundary conditions. Trelis will list the number of sets and individual boundary conditions in your model. This command will list the total number of each type of set and boundary condition, including boundary conditions that are not a part of a BC set.

Draw

To draw boundary conditions

  1. On the Command Panel, click on FEA BCs or CFD BCs.
  2. Click on any option from the Entity menu except Contact Pair and Set.
  3. Click on the Draw action button.
  4. Select Draw.
  5. Enter the appropriate settings.
  6. Click Apply.

Draw {bc_type} {<id-range>|all}[Add]

The draw keyphrase allows a Trelis user to draw any type of boundary condition. This command will clear the graphics window of every part of the model except for the selected boundary condition. Using the add keyword will permit multiple boundary conditions to be drawn at the same time. Any combination of boundary conditions and entities that were valid for delete and list are also valid for draw.

Highlight

To Highlight boundary conditions

  1. On the Command Panel, click on FEA BCs or CFD BCs.
  2. Click on any option from the Entity menu except Contact Pair and Set.
  3. Click on the Draw action button.
  4. Select Highlight.
  5. Enter the appropriate settings.
  6. Click Apply.

Highlight {bc_type} {<id-range>|All}

The highlight keyphrase allows a Trelis user to highlight any boundary condition. Highlighting a boundary condition will turn it bright orange and the vectors defining it will thicken. The highlight command is similar to the draw command.