Glycerin at 40C with r = 1252 kg/m3 and m =0.27 kg/m·s is flowing through a 2-cm-diameter, 25-m-longpipe that discharges into the atmosphere at 100 kPa.The flow rate through the pipe is 0.048 L/s. (a) Determinethe absolute pressure 25 m before the pipe exit. (b) At whatangle u must the pipe be inclined downward from the horizontalfor the pressure in the entire pipe to be atmosphericpressure and the flow rate to be maintained the same?
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.
Glycerin at 40C with r = 1252 kg/m3 and m =
0.27 kg/m·s is flowing through a 2-cm-diameter, 25-m-long
pipe that discharges into the atmosphere at 100 kPa.
The flow rate through the pipe is 0.048 L/s. (a) Determine
the absolute pressure 25 m before the pipe exit. (b) At what
angle u must the pipe be inclined downward from the horizontal
for the pressure in the entire pipe to be atmospheric
pressure and the flow rate to be maintained the same?
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