Formula 5.110

Maximum-velocity Vz-maximum of a falling film

Input(s)

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

g: Gravitational Acceleration $\left(\mathrm{m} / \mathrm{s}^{2}\right)$

$\boldsymbol{\delta}$: Film Thickness $(\mathrm{m})$

$\mathrm{mu}$: Viscosity $(\mathrm{kg} /(\mathrm{ms}))$

$\beta$: Angle of inclination w.r.t direction of gravity (rad)

Output(s)

vz: Maximum Velocity $(\mathrm{m} / \mathrm{s})$

Formula(s)

$$ v z=\frac{\rho * g * \delta^{2} * \cos (\beta)}{2 * \mu} $$

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley \& Sons, Page: 45 .