Water with a temperature of 20 oC is pumped from a tank open to the atmosphere (zA = 2.90 m), through two cast iron (roughness value ε=0.005mm) pipes of 29 m length, connected in parallel with the higher one (zB = 9.9 m). Pipe diameters are D1 = 3.9 cm and D2 = 5.9 cm, respectively. The water is pumped with a motor-pump group, whose efficiency is 69% and consumes 7090 W of electrical power during operation. miner losses in pipes connecting parallel pipes to tanks are neglected. Find the total volume flow rate between the tanks and the volume flow rate in each of the parallel pipes.

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.