Air Flow Rate

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

air flow rate formula

\(\large{ CFM = \frac {CID \; RPM \; VE} {3456}  }\)   

Where:

 Units English Metric
\(\large{ CFM }\) = cubic feet per minute \(\large{\frac{ft^3}{min}}\) \(\large{\frac{m^3}{s}}\)
\(\large{ CID }\) = cubic inch displacement \(\large{in^3}\) \(\large{mm^3}\)
\(\large{ RPM }\) = engine speed \(\large{\frac{rotation}{min}}\) \(\large{\frac{rotation}{s}}\)
\(\large{ VE }\) = volumetric efficiency \(\large{dimensionless}\)

 

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Tags: Flow Equations Air Equations Engine Equations