Water is descending in a vertical pipe of diameter 8 cm. At a certain level the water flows into a smaller pipe of diameter 1.2 cm. At a certain instant the gauge pressure of the water at a point 80 cm above the narrowing point is 86.6 kPa and the water there is moving at 94 cm/s. What is the gauge pressure of the water just above the narrowing point? What is the pressure change across the narrowing point?© BrainMass Inc. brainmass.com March 4, 2021, 11:15 pm ad1c9bdddf
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Bernoullie's equation is:
Where v is the speed at height z above a reference point, p is the pressure at that point, r is the density of the liquid ...
The expert examines the pressure change problems for descending vertical pipes.