Airflow Rate

Written by Jerry Ratzlaff. Posted in Fluid Mechanics

FORMULA

\( CFM = \frac {CID \:\cdot\: RPM \:\cdot\: VE} {3456} \) 

Where:

\(CFM\) = cubic feet per minute

\(CID \) = cubic inch displacement

\(RPM \) = engine speed

\(VE\) = volumetric efficiency