Friction factor in flow through conduits

Input(s)

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

L: Length of Conduit (ft)

v: Fluid Velocity (ft/s)

Po\boldsymbol{P}_{\boldsymbol{o}}: Inlet Pressure (psi)

PL\boldsymbol{P}_{\boldsymbol{L}}: Outlet Pressure (psi)

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

Output(s)

f: Friction Factor (dimensionless)

Formula(s)

f=0.25D(PoPL)0.5 Lρ(v2)\mathrm{f}=\frac{0.25 * \mathrm{D} *\left(\mathrm{P}_{\mathrm{o}}-\mathrm{P}_{\mathrm{L}}\right)}{0.5 * \mathrm{~L} * \rho *\left(\mathrm{v}^{2}\right)}

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 6, Page: 178 .


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