Friction drag
Input(s)
\(\mu\): Viscosity \((\mathrm{cP})\)
\(\mathrm{R}\): Radius (ft)
\(v_{\infty}\): Velocity as \(r\) Goes to Infinity \((\mathrm{ft} / \mathrm{s})\)
Output(s)
F: Force \((N)\)
Formula(s)
\[
\mathrm{F}=4 * \pi * \mu * \mathrm{R} * \mathrm{v}_{\infty}
\]
Reference(s)
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 2, Page: 60.