Pressure head in fluid mechanics is the pressure exerted by a liquid column on the base of the container. It is represented as the height of the liquid column. Pressure head is also called static head or static pressure headwhich is represented by ‘Z’.
The equation to determine the pressure head on a fluid is derived and explained below.
The pressure head in fluid mechanics can be determined by considering the pressure acting at any point on a fluid in rest condition. As per the hydrostatic law, the rate of increase of pressure in the vertically downward direction must be equal to the specific weight of the fluid at that point.
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