Derive the formulae for circular tube, square duct, rectangular duct and channel.
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Edited: Dec 08, 2022
How to calculate hydraulic diameter?
How to calculate hydraulic diameter?
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For flow through non circular tubes, the Reynolds number, Nusselt number, as well as friction factor, are based on the hydraulic diameter, Dh.
Circular Tube:
Square Duct:
Rectangular Duct:
Channel: