A horizontal bend of constant cross-sectional area (A) pipe is shown below (you are looking down on the bend from above). Water flows through the bend at steady flow conditions and the pressure is the same at points 1 and 2 (P1 = P2 = P). The mass flowrate (m_dot) and velocity (V) in the pipe are also constant. What is the magnitude of the force required to keep the bend from moving? V, i Force to keep the bend from moving V, O2PA O2m_dotV O2m_dotV + 2PA Om_dotV + 2PA O2m_dotV + PA
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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