Force exerted by the fluid on the solid surface of flow through an annulus
Input(s)
\(\mathrm{R}\): Radius \((\mathrm{m})\)
\(\mathrm{K}\): Boltzmann Constant \(\left(\mathrm{m}^{2} \mathrm{~kg} \mathrm{~s}^{-2} \mathrm{~K}^{-1}\right)\)
po: Pressure at initial point \((\mathrm{Pa})\)
\(\mathrm{pL}\): Pressure at point \(\mathrm{L}(\mathrm{Pa})\)
Output(s)
Fz: Force (Newton)
Formula(s)
\[
F z=\pi * R^{2} *\left(1-K^{2}\right) *(p o-p L)
\]
Reference(s)
Wikipedia.org.