Chain pipe segments with fittings and elevation changes. Outputs velocity, Reynolds number, flow regime, and cumulative pressure drop for each segment.
+ uphill, − downhill
+ uphill, − downhill
Friction factor: Colebrook-White equation (laminar: f = 64/Re). Minor losses: K·V²/2 referred to segment velocity.
Elevation term: ΔP_elev = ρgΔz — positive for uphill flow (pressure loss), negative for downhill (pressure recovery).
All segments use the same flow rate Q (series pipe run). For parallel branches, use the Parallel Pipe calculator.