Topic hub
Pipe Flow
Pipe flow content connects velocity, friction, roughness, pressure loss, head loss, and practical unit choices.
Core pipe-flow paths
Choose a calculator first, then use the linked references to check assumptions and interpretation.
Pipe velocity
Compute average velocity from flow rate and pipe diameter.
gpmdiameter
Darcy-Weisbach pressure loss
Estimate straight-pipe pressure and head loss from a supplied Darcy friction factor.
friction factormajor loss
Pipe flow continuity
Review the continuity equation and where average velocity applies.
QAV