Create the Volume CAD Entity Group

In this step, we collect the volumes into a CAD Entity Group. CAD Entity Groups effectively allow us to assign settings directly to the CAD model. In a later step, we associate this group with a Autodesk® CFD material.

Step 1: Start CAD and open the model

Open the manifold assembly from this folder:

Users\Public\Public Documents\Autodesk\CFD 2023\Tutorials\<cad>\automation-study.

Note: <cad> is Inventor, SolidWorks, or PTC Creo.

Step 2: Create the CAD Entity Groups

Click the CAD Entity Groups command.

For example, if you are launching from Autodesk® Inventor, click Simulation and CAD Entity Groups:

launch inventor

Click Create group.

create group

Select Volumes. Enter "Air" for the group name.

select volumes

Click OK.

SolidWorks Only: From the Selection Filter toolbar, select the Filter Solid Bodies icon. (If the Selection Filter toolbar is not visible, type F5.)

Click the air group, and select the five parts in the model.

air group

Click Save.

Note: We placed all the parts into the same group because they all have the same material. If one or more parts were to be assigned a different material, they should be added to a different group.

For more about CAD Entity Groups...

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