Friction factor in flow around submerged objects

Input(s)

g: Gravitational Acceleration (ft/s2)\left(\mathrm{ft} / \mathrm{s}^{2}\right)

v: Fluid Velocity (ft/s)

D: Diameter (ft)(\mathrm{ft})

ρ\rho: Fluid Density (g/cc)(\mathrm{g} / \mathrm{cc})

ρsph\rho_{s p h}: Density of Sphere (g/cc)(\mathrm{g} / \mathrm{cc})

Output(s)

f: Friction Factor (dimensionless)

Formula(s)

f=(4 gD3v2)(ρsphρρ)\mathrm{f}=\left(\frac{4 * \mathrm{~g} * \mathrm{D}}{3 * \mathrm{v}^{2}}\right) *\left(\frac{\rho_{\mathrm{sph}}-\rho}{\rho}\right)

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 6, Page: 179.


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