Filled contours, disable
Node Values, choose
Existing Value in the
Contours of drop-down list.
Select the appropriate surfaces (3D only).
Display to see the location of cells with each curvature value.
By displaying different ranges of values (as described in Section
28.1.2), you can determine the range of curvatures for which you want to adapt cells.
If you are using normalization, the range for the curvatures of any variable will always be [0, 1].
Set the values for
Cells with gradient values above this value will be either marked or refined.
Normalize per Zone option for cases where different flow conditions exist for different zones.
This approach of
zonal normalization normalizes (scale or normalize) each zone of the domain in contrast to normalization on the whole domain. This approach is useful for dynamic adaption (see Section
26.5 for details), where you want to solve the flow problem involving different flow intensities in the different cell zones.
If you use gradient adaption for the whole domain, the small gradients may be neglected in comparison to large gradients depending on the adaption threshold. Activating
Normalize per Zone in the
Gradient Adaption panel will scale or normalize each zone independently, which means the strongest gradient for each zone is considered separately for adaption of that zone.
If you expect gradients of different intensities throughout the domain and you want to resolve them, separate the domain into different zones for precise zonal normalization. This approach is referred as zonal adaption.
If you want to coarsen the grid,
Coarsen Threshold to a nonzero value. Cells with gradient values below the specified value will be either marked or coarsened.
1. If you are using the default hanging node adaption, you will not be able to create a grid that is coarser than the original grid. For this, use conformal adaption.
2. Conformal coarsening is only available for 2D or axisymmetric geometries. See Section
26.12 for details.
To mark the cells for adaption (refinement/coarsening), click
Mark. You can then place the cells in an adaption register, which can be manipulated (as described in Section
26.11.1). To perform the adaption immediately, click
To disable refinement, coarsening, or marking for refinement/coarsening, turn off the
Coarsen option before marking or adapting.