Hagen-Poiseuille equation (2)

Input(s)

$\boldsymbol{P}_{\boldsymbol{o}}$: Input Pressure (psi)

$\boldsymbol{P}_{\boldsymbol{L}}$: Output Pressure (psi)

$\mathrm{R}$: Radius $(\mathrm{ft})$

w: Mass rate of Flow (lb/s)

$\boldsymbol{\rho}$: Density (ppg)

L: Length (ft)

Output(s)

$\boldsymbol{\mu}$: Viscosity $(\mathrm{cP})$

Formula(s)

$$ \mu=\frac{\left(\mathrm{P}_{\mathrm{o}}-\mathrm{P}_{\mathrm{L}}\right) * \pi *\left(\mathrm{R}^{4}\right) * \rho}{8 * \mathrm{~W} * \mathrm{~L}} $$

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley \& Sons, Chapter: 2, Page: 51 .