Models of torpedoes are sometimes tested in a horizontal pipe of flowing water, much as a wind tunnel is used to test model airplanes. Consider a circular pipe of internal diameter 25.0 cm and a torpedo model aligned along the long axis of the pipe.The model has a 5.00 cm diameter and is to be tested with water flowing past it at 2.50 m/s. (a) With what speed must the water flow in the part of the pipe that is unconstricted by the model? (b) What will the pressure difference be between the constricted and unconstricted parts of the pipe?
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.
Models of torpedoes are sometimes tested in a horizontal pipe of
flowing water, much as a wind tunnel is used to test model airplanes.
Consider a circular pipe of internal diameter 25.0 cm and a torpedo
model aligned along the long axis of the pipe.The model has a 5.00 cm
diameter and is to be tested with water flowing past it at 2.50 m/s. (a)
With what speed must the water flow in the part of the pipe that is
unconstricted by the model? (b) What will the pressure difference be
between the constricted and unconstricted parts of the pipe?
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