Friction factor in packed column (turbulant)

Input(s)

в: Fractional Void Space (dimensionless)

Output(s)

f: Friction Factor (dimensionless)

Formula(s)

$$ \mathrm{f}=0.875 *\left(\frac{1-\varepsilon}{\varepsilon^{3}}\right) $$

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley \& Sons, Chapter: 6, Page: 191.