Selecting the Boundary Layers checkbox enables mesh generation of structured boundary layers on boundaries (available in 2D with the Gridgen2D and Gmsh mesh generators).
GMSH BOUNDARY LAYER EXAMPLE MANUAL
See the corresponding section below for more details and manual boundary assignment. The Reparametrization Angle is available with the Robust and Gmsh mesh generators for STL faceted geometries to set prescribe a feature angle for boundary segmentation (post mesh generation). Quadrilateral mesh generation is available with the Built-in and Gmsh algorithms in 2D. The number of grid Smoothing steps can be specified in the corresponding edit field.Ĭell Type shows which mesh cell types are available Tri, Quad, or Tet. For the Robust algorithm this will correspond to the detail level included features (high quality will include more and finer features of the input geometry). The Quality slider allows setting the target mesh quality. The following options are only available and enabled by a subset of grid generation algorithms. Accepts a scalar or space separated list of real numbers (one entry for each subdomain or boundary). The Subdomain Grid Size and Boundary Grid Size edit fields can be used to prescribe maximum grid sizes for subdomains and boundaries. Specifically the Robust algorithm is appropriate for difficult to mesh 3D geometries and faceted geometries (such as from STL and OBJ CAD formats).
The built-in default algorithm should work well in most cases and the other algorithms are optional.
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