Air Flow Rate
air flow rate formula |
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| \(\large{ CFM = \frac {CID \; RPM \; \eta_v} {3456} }\) | ||
| Symbol | 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 | \(\large{\frac{r}{min}}\) |
\(\large{\frac{r}{min}}\) |
| \(\large{ \eta_v }\) (Greek symbol eta) = volumetric efficiency | \(\large{dimensionless}\) | |
