Freestream Velocity - can't set as negative?

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1

I am trying to simulate the lift produced on an aircraft wing. The wing is oriented such that air enters from the -y direction. The freestream velocity in the results control, forces and moments coefficients only allows a positive input. Do I have to flip my model in CAD or is there a simple fix for this?

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Hi @34a07642e91b43,

Thanks for posting your question. As this (|U<∞>|) Freestream velocity magnitude regards an absolute value, you can directly put the same value as Velocity Inlet, but using the positive value.
Example: Velocity inlet = -5 m/s; (|U<∞>|) = 5 m/s.

best,