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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Channel flow › Reply To: Channel flow

July 28, 2021 at 7:54 am
aitor.amatriain
Subscriber
For laminar flow (Re<2000), friction coefficient lambda=64/Re. For turbulent flow (Re>400), there are many correlations available. Wikipedia gives a decent recopilation of all of them:
Darcy friction factor formulae - Wikipedia