Description

By default, a Delaunay based method is used to insert points into an unstructured domain when it is initialized. Alternatively, you may select the Advancing Front or Advancing Front Ortho methods.

2D Unstructured Solver Algorithms Frame
The Algorithm pull-down provides additional methods for filling the isotropic portion of the domain.

The Algorithm pull-down provides a choice of three methods for filling the isotropic portion of the domain:

  • Delaunay: Fills the interior of the domain with isotropic cells (triangles or triangles and quads) using a modified Delaunay approach. Delaunay is the default option for Algorithm.
  • Advancing Front: Fills the interior of the domain with isotropic cells (triangles or triangles and quads) using an advancing front approach. When Cell Types is set to Triangles, Advancing Front produces equilateral triangles that are more uniform in appearance than Delaunay.
  • Advancing Front Ortho: Fills the interior of the domain with right-angled isotropic cells (triangles or triangles and quads) using an advancing quad approach.

The figure below shows a comparison of the grid characteristics produced by the three algorithms when using the Triangles and Triangles and Quads cell type options.

Algorithm Comparison
The Delaunay, Advancing Front, and Advancing Front Ortho algorithms produce surface grids with very distinct characteristics.

Demonstration