[Tarif111]

I want to clarify my doubts regarding the aerodynamic simulation over of a race car.
In real life the car is moving and the air is in motion. The ground is stationary.

If I want to simulate in starccm + then, is it necessary to give relative velocity to the wind tunnel ground ?

Please help me to clarify my doubts.
Thanks in advance.

[cramr5]

Originally Posted by Tarif111

If I want to simulate in starccm + then, is it necessary to give relative velocity to the wind tunnel ground ?

Yes, yes you should, and also don't forget that the tyres rotate, you should also include angular velocity to the tyre and rim.

Edit: if that's too complex maaybe you can get away with setting the ground as Slip but won't be fully accurate.