In Fluid mechanics, Bernulli eqn in pressure term is 1.Here, Maximum value of th

Question

In Fluid mechanics,

Bernulli eqn in pressure term is

1.Here, Maximum value of the static pressure P is atmospheric pressure??

For example, think of the fluid flowing through the pipe and we measure the static pressure P with the tube attached to pipe.

2.Actually I'm curious why as velocity increase, P decreases. In reality, as V increases, the suction force made by the flow increases. But in the eqn, P decreases.

If you are planning to upload your paperwork, I want it to be clear to look at. Thank you.

Explanation / Answer

When the area is reduced,since the fluid is incomprehensible it's density won't change so velocity has to increase . Fluid exiting from a nozzle decrease in pressure :now total energy of each Delta element remain constant and hence Bernoulli's principle exists. the above answer is also true in some manner

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