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LaTeX Math Block
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{\rm Re} = \frac{InF}{ViscF}\rho_L \, v_L^2 \, d_L^2 + \rho_g \, v_g^2 \, d_g^2}{\mu_L \, v_L \, d_L + \mu_g \, v_g \, d_g}

where










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titleDerivation


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Reynolds number represent the ration of intertial forces to viscous fforcesforces:

LaTeX Math Block
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{\rm Re} = \frac{\rm Intertial \ Forces}{\rm Viscocus orces\ Forces}





See also

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Physics / Fluid Dynamics / Pipe Flow Dynamics / Darcy–Weisbach equation / Darcy friction factor 

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