Learning Forum

[Aditya663]

Sir, i am trying to perform CFD analysis on my BAJA ATV's bodyworks. Im not able to create the boolean. Please suggest some steps. The same error is displayed in my case too

[Rob]

Moving to a new thread. 

What are you trying to boolean to/from? What operation are you trying to do?

[Aditya663]

Sir, my aim is to perform CFD analysis and find out the air drag on the body panels of the car, basically for optimizing the front panel of the car.

[Rob]

OK. CFD uses a volume mesh and domain: you can't boolean a surface from a volume. Have a look at the various tutorials. For most cars we subtract the car volume from the domain: you need to close the shape. 

[peteroznewman]

Aditya,

You could extrude the edges of the open body shell away at an angle, creating 8 surfaces that would be set to Internal in Fluent, which means that air will pass through those surfaces.  The faces that you show now will be walls. Then the solid body that creates the air for the "wind tunnel" can subtract the solid that is this extrusion with the open body faces at the end.

Here is an example. Attach your .wbpz archive if you don't understand and I might help.