The Split Prisms option allows you to create a few prism layers
and then split them. This method is faster and can be more robust
than growing the same total number of prism layers using the Mesh Prism option.
- Selected Prism Surface Parts
specifies the selected prism surface parts. Clicking the icon
will
open a window with a list of prism surface parts. The prism layers
on the selected surface parts will be split. If no shell mesh part
is selected, then all surface prism parts will be automatically selected.- Selected Prism Volume Parts
specifies the selected prism volume parts. Clicking the icon
will
open a window with a list of prism volume parts. If volume parts are
selected, only the prism layers of the selected surface parts that
belong to these volumes will be split. If no volume parts are selected,
the prism layers for all the selected surface parts will be split
regardless of the volume part.- Method
specifies the method for splitting prism layers.
- Fix ratio
allows you to split a prism layer such that the specified Prism ratio is applied to its resulting layers.
- Fix initial height
allows you to split the first layer such that its first sub-layer is the specified Initial layer height.
- Number of layers
specifies the number of layers to result from each existing layer.
- Split only specified layers
allows you to split only specific prism layers.
- Layer numbers (0,1,2...)
specifies which prism layers are to be split. The first prism layer is 0, the second layer is 1, etc.
- Do not split attached pyramids
when enabled, the pyramidal elements that are attached to the prism layers will not be split. This option is disabled by default.
Note: Using this option will result in hanging nodes in the mesh because multiple prism side faces will be covered by one pyramid's base face. Subsequent mesh checks will find uncovered faces and surface orientation errors. Most solvers cannot accept these hanging-nodes, others such as Ansys Fluent prefer pyramids this way because they will have better aspect ratios than if they were split thin along with the adjacent prisms.