Three Reservoir Problem

Three Reservoir Problem


This problem includes three reservoirs connected by three pipes with an additional external flow demand at the common junction of the three pipes. The highest reservoir has a water surface elevation of 100.0 M, the middle reservoir water surface elevation is 85.0 M and the lowest reservoir has a water surface elevation of 60.0 M.

The pipe from the highest reservoir has a length of 2000 M and inside diameter of 300mm. The pipe from the middle reservoir has a length of 1500 M and inside diameter of 250mm and the pipe from the lowest reservoir has a length of 3000 M and inside diameter of 250mm. The absolute pipe roughness of each pipe is 0.0005 m.

We are required to determine the discharge in each pipe.    



Fig 1: Three Reservoir Problem.

 

DescriptionPublished ResultsFluidFlow Results
Flow rate from highest reservoir0.1023 m3/s0.1022 m3/s
Flow rate from middle reservoir0.02 m3/s0.02 m3/s
Flow rate from lowest reservoir0.0622 m3/s0.0621 m3/s

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