Calculation of momentum flux
Input(s)
\(\mu\): Fluid Viscosity \((\mathrm{cP})\)
\(\boldsymbol{d} \boldsymbol{v}_{\boldsymbol{x}}\): Change in Velocity in the \(\mathrm{x}\)-direction \((\mathrm{ft} / \mathrm{s})\)
\(d y\): Plate Separation in the \(y\)-direction (ft)
Output(s)
\(\boldsymbol{\tau}_{y x}\): Momentum Flux \(\left(\mathrm{lb} \mathrm{f} / \mathrm{ft}^{2}\right)\)
Formula(s)
\[
\tau_{y x}=-\left(2.0886 * 10^{-5}\right) * \mu * \frac{d v_{x}}{d y}
\]
Reference(s)
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second ed.). John Wiley & Sons, Chapter: 1, Page: 15.