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frict.fact. variation with T dependent viscosity

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Old   August 31, 2001, 09:52
Default frict.fact. variation with T dependent viscosity
Fred Uckfield
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I've found a correlation for the variation in fanning friction factor due to the temperature dependency of liquid viscosity for fully developed flow between two fixed T parallel plates (e.g. a reduction factor in f=1/6(7-(Visc@free streamT/Visc@wallT)) compared to fixed Visc f values).

Anyone know if this holds for circular pipe flow as well?

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