In dictionaries:
Darcy friction factor
(fluid mechanics) A dimensionless friction factor relating the head loss over a pipe to the lengthscale of the pipe and the fluid velocity.
Fanning friction factor
The (named after American engineer John T. Fanning) a dimensionless number used as a local parameter in continuum mechanics calculations.
Darcy friction factor formulae
In fluid dynamics, the Darcy friction factor formulae are equations that allow the calculation of the Darcy friction factor, a dimensionless quantity used in the Darcy–Weisbach equation, for the description of friction losses in pipe flow as well as open-channel flow.
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