Does Bernoulli's equation contradict the pressure formula P=F/A?

[moatasim23]

According to Bernoulli eq Pressure of a fluid in a vertical pipe is lower where area is small.But from General formula P=F/A.Pressure should be higher.Isnt it a contradiction?

 

[andytinker]

Some fluids have minimal compression, like water. Two vertical pipes joined at the bottom with one smaller than the other would have movement.

 

[moatasim23]

Sorry I didnt get the point.Im assuming an incompressible fluid.

 

[moatasim23]

Some fluids have minimal compression, like water. Two vertical pipes joined at the bottom with one smaller than the other would have movement.

?

 

[HallsofIvy]

According to Bernoulli eq Pressure of a fluid in a vertical pipe is lower where area is small.But from General formula P=F/A.Pressure should be higher.Isnt it a contradiction?

It would be if F were a constant. In Bernoulli's equation it is the fluid flow that is constant, not the force

 

[moatasim23]

It would be if F were a constant. In Bernoulli's equation it is the fluid flow that is constant, not the force

Why F is not constant?On which factors does F depends here?

 

[moatasim23]

Is this explanation correct?
There are two types of pressures :
1)Static pressure
2)Dynamic pressure
In bernoullis eq we are talking about Dynamic pressure which increases or decreases wd fluid speed.

 

[andytinker]

With minimal compression, the fluid doesn't follow PV=P1V1. If you have flow from a small section to large the pressure is lower, if its a compressible fluid that gets changed to velocity F=mv2, if its not velocity slows down.

I think

 

[moatasim23]

With minimal compression, the fluid doesn't follow PV=P1V1. If you have flow from a small section to large the pressure is lower, if its a compressible fluid that gets changed to velocity F=mv2, if its not velocity slows down.

I think

I didnt get my answer.:(