Hagen Poiseuille equation (1)

Input(s)

$P_{o}$: Input Pressure (psi)

$P_{L}$: Output Pressure (psi)

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

w: Mass rate of Flow (lb/s)

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

L: Length (ft)

Output(s)

$\mu$: Viscosity (cP)

Formula(s)

$$ \mu=\frac{\left(P_{o}-P_{L}\right) * \pi *\left(R^{4}\right) * \rho}{8 * w * L} $$

Reference(s)

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