Who has the formula for calculating resistance using viscosity and coefficient of friction?

2011-06-30View Original

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Who has the formula for calculating resistance using viscosity and coefficient of friction?

Reply #22011-06-30

Check the principles of chemical engineering. . . . . . . . . . . .

Reply #32011-06-30

Ugh, I don’t have the information available right now, which is why I came to ask. I’ll try to find it if I can; it’s frustrating – I’ve even forgotten some of the things I learned

Reply #42011-06-30

This post was last edited by snowdfr on 2011-7-1 13:52. Calculation of resistance in straight pipes (Fanning formula): Hf = λ × l/d × u²/2g. Where Hf represents the resistance; λ is the friction coefficient; l is the length of the straight pipe, in meters; d is the inner diameter of the straight pipe, in meters; u is the flow velocity, in m/s. In laminar flow, λ = 64/Re, where Re is the Reynolds number, calculated as du/ρμ. For turbulent flow, values must be looked up in a table

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