A liquid of density 1260 kg/m³ flows in a processing plant pipe at a rate of 700 L/s. At a point where the pipe diameter is 60cm, the pressure is 300 kPa. Calculate : (i) the velocity in the beginning (ii) the velocity of the liquid at the end of the second pipe (iii) the pressure at the second point, which is 1metre lower than the first point, with a pipe diameter of 30 cm.
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.
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