A certain part of cast iron piping of a water distribution system involves a parallel section. Both parallel pipes have a diameter of 30 cm, and the flow is fully turbulent. One of the branches (pipe A) is 1500 m long while the other branch (pipe B) is 2500 m long. If the flow rate through pipe A is 0.4 m3/s, determine the flow rate through pipe B. Disregard minor losses and assume the water temperature to be 15°C. Show that the flow is fully rough, and thus the friction factor is independent of Reynolds number.
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
A certain part of cast iron piping of a water distribution
system involves a parallel section. Both parallel
pipes have a diameter of 30 cm, and the flow is fully turbulent.
One of the branches (pipe A) is 1500 m long while
the other branch (pipe B) is 2500 m long. If the flow rate
through pipe A is 0.4 m3/s, determine the flow rate through
pipe B. Disregard minor losses and assume the water
temperature to be 15°C. Show that the flow is fully rough, and
thus the friction factor is independent of Reynolds number.
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