Correction factor for stagnant film according to the penetration model
Input(s)
\(\emptyset\): Rate Factor \((\mathrm{rad})\)
Output(s)
\(\theta\): Correction Factor (dimensionless)
Formula(s)
\[
\theta=\frac{\exp \left(\frac{-(\varnothing)^{2}}{3.142}\right)}{1+\operatorname{erf}\left(\frac{\varnothing}{(3.142)^{0.5}}\right)}
\]
Reference(s)
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 22, Page: 707.