Friction in Pipes
The head loss caused in a straight pipe is
The loss in friction caused due to the bend, couplings, valves are
General formula used to calculate friction loss is
If the equivalent length of a 90° elbow is greater than the 45° elbow, the pressure loss across the 90° elbow is ________ the 45° elbow.
For hydraulically smooth pipe, the resistance to flow depends only on the?