In Fluid mechanics Bernulli eqn in pressure term is 1Here Ma

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.

Solution

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