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Reverse a fan?

post #1 of 3
Thread Starter 
This might seem silly at first but, has anybody tried changing the direction of 1 fan on a 2 fan tower type cooler so both of them would push air in or out of the heat sink?

I figured if you have 2 fans going in the same direction - one pushing another pulling then all the benefit you get is stronger airflow but the amount of potential airflow stays the same. If you put both fans pushing or pulling then you get double the potential airflow at the cost of higher resistance because the air would have to travel in/out at the side of the cooler making a 90 degree angle in either way. I dont have a tower cooler so i cant test this but maybe somebody could?

Even tho this might not work on regular fans because the increased resistance is too much to overcome, since you can increase the strength of a fan without increasing the speed of its blades, strong double fans could maybe double the airflow without a significant increase in noise?
post #2 of 3
Airflow is surface times airspeed. With your method you may get more surface, but speed is definitely going down because of turbulence.
Omicron Lyrae
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Omicron Lyrae
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X3 720 BE @3.6 Asus M4A785TD-V EVO Sapphire HD5770 V2 OCZ 2x2GB Gold DDR3-1333 
Hard DriveOptical DriveOSMonitor
Samsung Spinpoint F3 1TB Sony Lightscribe DVD-RW Windows 7 Professional 64-bit AOC F22+ 1080p 
KeyboardPowerCaseMouse
Cherry Scissor Switch Flat Keyboard OCZ StealthXstream 600W Cooler Master Elite 334 Microsoft Sidewinder 
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post #3 of 3
I accidentally did this on my rig. For me, temps went up, noise went up, and there was absolutely no benefit to doing it. Might be different for other setups, but absolutely terrible idea for me.
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