Minor Losses
Minor Loss — Sudden Enlargement
Borda–Carnot loss for an abrupt pipe enlargement. Loss is expressed directly in terms of upstream and downstream velocities.
Formula
hL = (V1 − V2)² / (2g)
Resultlive
- V1
- 2.5m/s
- V2
- 0.625m/s
- K = (1 − A1/A2)² (× V1²/2g)
- 0.563
- Head loss, hL
- 0.17919m
Reference: Borda–Carnot equation; exact for steady, incompressible, abrupt-area-change flow.