The model consists of three internal fans aligned perpendicular to the screen and mounted on the right side of a sub-rack. Initially, I used the "Add from Components" feature to import the sub-rack configuration. However, I noticed an unusual behavior with the last fan, as shown in the screenshot above: the airstream was entirely directed toward the bottom, which didn’t make sense.

After thoroughly reviewing all my configurations and testing multiple possibilities, I decided to run the simulation directly on the actual model instead of using the "Add from Components" feature. With the same system and mesh, the results showed a more realistic airflow behavior. Any idea what could have caused this discrepancy?