Recent content by D.Britt

If fan x has 70cfm and 2.4 mm H20 at 2000 Rpm, and fan Y has 75 cfm and 2.6 mm H20 at 2000 rpm. what comes out of the back of fan y? If you take the radiator out of the equation entirely....there has to be a formula for that somewhere.

They're on a radiator. What I'm trying to figure out is...well, two fans in push pull isn't fan x plus fan y to get total cfm and mm h20. So how do you figure that out? I know the thickness and fin layout of the radiator play a part in it...but why can't I find a simple formula for the sum of...

I have 4 x 14cm intake fans. But they're in push/pull. I can't find a formula for the actual cfm or static pressure for computer fans in push/pull. I found this for HVAC fans: (cfm2/cfm1)²xSP1=SP2. Why wouldn't that be the same thing?