27.10.1 Performing Geometry-Based Adaption

The Geometry Based Adaption dialog box (Figure  27.10.1) allows you to reconstruct the geometry while performing boundary adaption.

Adapt $\rightarrow$ Geometry...

Figure 27.10.1: The Geometry Based Adaption Dialog Box

The procedure for performing geometry-based adaption is as follows:

1.   Enable the Reconstruct Geometry option.

2.   Under Wall Zones, select the zone you want to adapt and click Set.... The Geometry Based Adaption Controls dialog box will open.

Figure 27.10.2: The Geometry Based Adaption Controls Dialog Box

In the Geometry Based Adaption Controls dialog box, set the following parameters:

• Specify Levels of Projection Propagation to indicate the number of layers of the nodes you want to project.

• Enable Direction of Projection and specify the directions in which you want to project the nodes.

    This will activate the parameters X, Y and Z. If you want node projection in the X direction, specify X=1. If you do not activate this option, the node projection will take place at the nearest point.

• (optional) If you have fine surface mesh for the geometry, you can use the Background Mesh option to load the surface mesh as a background mesh. This will project the nodes based on the background mesh and reconstruct the geometry more accurately.

• To disable the geometry reconstruction for any zone in the domain,

  activate Disable Geometry Based Adaption for this Zone.

3.   To disable geometry-based adaption for the whole domain, disable Reconstruct Geometry.

After setting the parameters for geometry-based adaption proceed to mesh adaption.