Momentum fluxes for creeping flow into a slot

Input(s)

Pi\mathbf{P}_{\mathrm{i}}: Pressure input (psi)

P0\mathbf{P}_{\mathbf{0}}: Pressure output (psi)

R: Radius of sphere (cm)(\mathrm{cm})

к: Turbulance coefficient (dimensionless)

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

μ\boldsymbol{\mu}: viscosity of fluid (cP)(\mathrm{cP})

ξ\xi: angle of contact between two entities (rad)

Output(s)

W: Mass Flow Rate (g/s)(\mathrm{g} / \mathrm{s})

Formula(s)

W=π(PiPo)(R3)((1κ)3)ρ12μln(cot(ξ2))W=\frac{\pi *\left(P_{i}-P_{o}\right) *\left(R^{3}\right) *\left((1-\kappa)^{3}\right) * \rho}{12 * \mu * \ln \left(\cot \left(\frac{\xi}{2}\right)\right)}

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.), John Wiley & Sons, Page: 107.


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