Question

In control volume approach, when fluid exits subsonically to an atmosphere, the fluid pressure there is assumed to be:
a. 0
b. Atmospheric
c. Fluid pressure
d. Fluid pressure + Atmospheric pressure​

Answer 1

Answer:

this is the answer

Explanation:

When the flow is happening inside the pipe, the flow static pressure need not be same as the ambient pressure. The static pressure can be higher or lower than the ambient. This is because the pipe protect the fluid medium from the ambient. However, when the flow is exposed to the ambient, the ambient pressure will act on the fluid medium and both pressure will become equal.It should be noted that the flow should be subsonic or imcompressible. If the flow is supersonic at exit, the story will be different.