SilverStone has a webpage on optimal airflow that I think covers the basics pretty well, but one thing stuck out to me:
They explicitly advise against putting two exhaust fans perpendicular to one another because the fans will fight for air, causing "air pressure imbalance and reduced flow efficiency." This is a pretty commonly recommended fan setup in PC communities though, and some cases even come with fans pre-installed like that.
So is SilverStone right, and have people been setting up their cooling incorrectly? Maybe the distance required between the fans for them to be considered perpendicular is narrow enough that this doesn't apply to many cases? Or maybe the reduced flow efficiency effect is small enough that it doesn't really matter? I assume SilverStone has tested these setups for them to come out against the grain like this.
They explicitly advise against putting two exhaust fans perpendicular to one another because the fans will fight for air, causing "air pressure imbalance and reduced flow efficiency." This is a pretty commonly recommended fan setup in PC communities though, and some cases even come with fans pre-installed like that.
So is SilverStone right, and have people been setting up their cooling incorrectly? Maybe the distance required between the fans for them to be considered perpendicular is narrow enough that this doesn't apply to many cases? Or maybe the reduced flow efficiency effect is small enough that it doesn't really matter? I assume SilverStone has tested these setups for them to come out against the grain like this.