External flow simulations around models such as aircraft require far-field surfaces that wrap the entire flow domain. When generating a mesh from uploaded CAD for this type, you will first need to create a far-field if your model doesn't already have one.
This can either be done within your CAD program before importing the model or directly within Luminary Cloud following import:
Upload a CAD model. You'll be taken to the Geometry tab.
In the toolbar at the top, click the Far-Field icon
.In the panel, choose a shape (sphere, half sphere, box, or cylinder). Depending on which shape you select, you can then set up the size and position of the far-field.
Click Apply.
The far-field should be large enough so that there are no flow reflection effects back into the domain from this boundary. For low-speed flow simulations, the far-field should be about 20 to 50 times the size of the model.