Specify the Quality Improve Limit, or keep the default value. This sets the threshold for when mesh quality improvements are automatically invoked that employ the orthogonal quality limit, and is recommended to be around 0.04. Cells below this limit will automatically be displayed.

Select your region(s) for which multizone controls have been created and where you want to generate the multizone mesh.

For imported CAD geometries that include body labels (and if you have set the Use Body Labels field to Yes in the Import Geometry task, see Importing Geometries), body label names are also listed alongside named regions in the selection list.

Select items in the list, or use the Filter Text option in the drop-down to provide text and/or regular expressions in filtering the list (for example, using *, ?, and []). You can also choose the Use Wildcard option in the drop-down to provide wildcard expressions in filtering the list. When you use either ? or * in your expression, the matching list item(s) are automatically selected in the list. Use ^, |, and & in your expression to indicate boolean operations for NOT, OR, and AND, respectively. See Filtering Lists and Using Wildcards for more information.

Use the Non-Conformal Mesh between Multizone and the rest? prompt to optionally specify that multizone regions are non-conformally connected to other volumetric regions. If you want to have a conformal mesh but, because of meshing constraints, that is not possible, then you can switch to non-conformal here and avoid doing so in the CAD model.

This option is not available when your geometry consists of a body inside another body where the bodies are not touching each other.

Use the Size Function Scale Factor option to enable the scaling of the multizone mesh. In some cases when the multizone region is too coarse when compared to the adjacent surface mesh, a connection is not possible. You can specify a size function scaling factor here to improve the sizing match between the multizone and the non-multizone regions and avoid any free faces. Typically, a value between 0.7 and 0.8 is recommended. This field is not available when using non-conformal meshes.

Click Generate the Multizone Mesh to generate a volume mesh for the specified multizone(s). Connected regions will be meshed simultaneously. If all regions have multizone controls, and all are selected, then this task removes and takes the place of the Generate the Volume Mesh task in the workflow.

If you need to make adjustments to any of your settings in this task, click Edit, make your changes and click Update, or click Cancel to cancel your changes.

Use the Draw Mesh button to display the fluid and/or solid meshes.