Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the discharge through each pipe is added to obtain total discharge
a trial solution is not necessary
the head loss is same through each pipe
the discharge is same through each pipe

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Hydraulics and Fluid Mechanics in ME
Two dimensional flows occurs when

The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane
The magnitude and direction of the velocity do not change from point to point in the fluid
The velocity of successive fluid particles, at any point, is the same at successive periods of time
The direction and magnitude of the velocity at all points are identical

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