59 1.00 Entrance 0.80 Friction hill 0.60 Example 1.11 φ φ / φ max Prof. Ramesh Singh, Notes by Dr. Singh/ Dr. Colton 0.40 0.20 Exit 0.00 1.35 1.3 1.25 1.2 1.15 1.1 1.05 1 pressure / 2Tflow 0.95 0.9