Aeration Number
Aeration Number, abbreviated as \(N_a\), a dimensionless number, is used for the agitated mixing of gas and liquids.
Aeration Number formula |
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\(\large{ N_a = \frac{ Q }{ n \; d^3 } }\) | ||
Symbol | English | Metric |
\(\large{ N_a }\) = Aeration number | \(\large{dimensionless}\) | |
\(\large{ Q }\) = volumetric flow rate of gas | \(\large{\frac{ft^3}{sec}}\) | \(\large{\frac{m^3}{s}}\) |
\(\large{ n }\) = rotational speed | \(\large{\frac{deg}{sec}}\) | \(\large{\frac{rad}{s}}\) |
\(\large{ d }\) = diameter of impeller | \(\large{in}\) | \(\large{mm}\) |