A vessel contains three different liquids of different specific gravities: glycerin, water, and olive oil. These three liquids settle at different levels in the vessel, that there is a 3 foot deep layer of glycerin, a 2 foot deep layer of water, and a 4.5 foot deep layer of olive oil: Calculate the total hydrostatic pressure at the bottom of the vessel, in units of PSI gage and PSI abs. Notes: Specific weight : olive oil = 0.0624 lbf/ft3,; water = 62.43 lbf/ft3 ; glycerin =78.6 lbf/ft3 Atmospheric pressure = 14.7 PSI
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 vessel contains three different liquids of different specific gravities: glycerin, water, and olive oil. These three liquids settle at different levels in the vessel, that there is a 3 foot deep layer of glycerin, a 2 foot deep layer of water, and a 4.5 foot deep layer of olive oil:
Calculate the total hydrostatic pressure at the bottom of the vessel, in units of PSI gage and PSI abs.
Notes:
Specific weight : olive oil = 0.0624 lbf/ft3,; water = 62.43 lbf/ft3 ; glycerin =78.6 lbf/ft3
Atmospheric pressure = 14.7 PSI
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