Consider two liquids of densities p₁ = 1000 kg/m³ and p2 = 800 kg/m³ that are initially flowing in pipe1 and pipe2, respectively. The two flow streams are mixed when they merge into the horizontal pipe3 as shown in the figure. The flow rates in the three pipes are Q₁ = 10-2 m³/s, Q₂ = 2.5x10-3 m³/s and Q3 = 1.25x10-² m³/s and the viscosities of all three fluids are equal: μ₁ = μ₂ = μ3 = 5.1x10-4 Pa.s. Q1 Q2 Pipe2 Pipel The flow in pipe3 is laminar True False Pipe3 Q3
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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