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Old   July 30, 2006, 22:06
Default fully developed duct flow
Xing Zhang
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For a fully developed laminar flow in square duct, does anyone know the ratio of maximum velocity/bulk velocity? Thanks.
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Old   July 31, 2006, 07:43
Default Re: fully developed duct flow
Andrew Hayes
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isn't the max flow at the centerline for fully developed flow equal to 1.5*Vin? I don't know if this applies to a a square duct though.
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Old   August 2, 2006, 19:00
Default Re: fully developed duct flow
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For a square duct you calculate the equivalent hydraulic diameter Dh=4*Area/(Wetted perimeter) and can do mean velocity calculations.Check any introductory book on fluid mechanics.

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