Blood (?blood = 1040 kg m−3) is flowing through an artery of diameter 0.6 cm at a speed of 0.70 m s−1 and at a pressure of 110 kPa. You can assume that atmospheric pressure is 100 kPa. (a) What is the gauge pressure (in kPa) in the artery? A section of the artery bulges so that the diameter is larger than normal. What is the gauge pressure in the bulge when the artery diameter has increased by ... (Note: you can assume that the artery is horizontal) (b) 5% (c) 10% (d) 20% (e) 50% (f ) 100%
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.
14.17 Blood (?blood = 1040 kg m−3) is flowing through an artery of diameter 0.6 cm at a speed of 0.70 m s−1 and at a pressure of 110 kPa.
You can assume that atmospheric pressure is 100 kPa.
(a) What is the gauge pressure (in kPa) in the artery?
A section of the artery bulges so that the diameter is larger than normal. What is the gauge pressure in the bulge when the artery diameter has increased by ... (Note: you can assume that the artery is horizontal)
(b) 5% (c) 10% (d) 20% (e) 50% (f ) 100%
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