The table at the top of the Solve tab shows the elliptic solver information such as the Status (whether it is initialized or has been refined), what Iteration number has been run, the Dimensions, the Max. Residual and Total Residual. You can pick the entities you want to solve (i.e., the subgrids) so that only the entities with a checkmark next to them will be modified.

Solve panel for structured domains and blocks
The Solve panel for structured domains and blocks controls the elliptic PDE-based smoothing and transfinite interpolation techniques.

The entities can be sorted by any of the columns in the table. Simply click on the header and the order of the entities changes accordingly. For example, if you wish to sort all entities by their dimensions, you would click on the Dimensions header at the top of the table. The direction of the arrow in the header indicates whether the sort is in ascending or descending order. Pointwise also remembers how you prefer to have your entities sorted. Upon entering the Solve command, the entities are sorted in the same manner as when you exited the command.


Note: Keep in mind that Pointwise remembers how entities are sorted in this table only during the current session. Once Pointwise is closed, the sort order is not retained.

Below the table is the Iterations text field which allows you to specify how many iterations the solver runs. There are also several buttons for running the solver, initializing entities, and projecting domains:

  • Run: Runs the elliptic solver for the number of iterations specified for Iterations. Press the Stop button or the stop sign icon (Icon: Interrupt) in the lower left corner of the panel to interrupt the solver and stop before reaching the number of iterations. Note that when solving on a structured block, a yellow circle icon is rendered in the Display window showing the location of the maximum residual.

    Note: When pressed, the text of the Run and Initialize buttons changes to Stop. Pressing the button a second time interrupts the command and returns the button to its original state.

  • Initialize: Computes the domain or block interior grid point locations using the transfinite interpolation (TFI) parameters specified in the Attributes tab (Ref. 9, Ref. 18, Ref. 21). TFI is automatically applied to a grid when it is first created but can be applied manually any time thereafter as well.
  • Project: Projects any grids with database constrained shapes to the database using the current shape attributes. Note this command is not available for blocks. The Project button is grayed out if the database is invisible or not available as a shape option.

The Examine button is a shortcut to the full Examine function while in the Solve command. The Function drop down menu shows the available options. For blocks, cuts are saved as long as the Solve command is active and reset when OK or Cancel is selected. Close closes the Examine function and return to the Solve command. For more information about the diagnostic functions available, refer to the Examine section.


Structured Meshing Strategies for Wing Tips

How to Generate an Axisymmetric Structured Grid