Hagen number

Input(s)

PG: Pressure Gradient $(\mathrm{Pa} / \mathrm{m})$

$\rho$: Fluid Density $\left(\mathrm{kg} / \mathrm{m}^{3}\right)$

L: Characteristic Length $(\mathrm{m})$

v: Kinematic Viscosity $\left(\mathrm{m}^{2} / \mathrm{s}\right)$

Output(s)

Hg: Hagen Number (dimensionless)

Formula(s)

$$ \mathrm{Hg}=-\frac{1}{\rho} * \mathrm{PG} * \frac{\mathrm{L}^{3}}{\mathrm{v}^{2}} $$

Reference(s)

Wikipedia.org.