Fluid Dynamics

1. May 24, 2013

anthonynichola

Hello, is there anyone who can help me with this? Im completely stumped. Here is the situation:

Point A: Water is flowing into a valve at 559 (mbar) of pressure and into a cylinder thats 12 mm long and 7mm in diameter.

Point B: It then will enter another cylinder that is 40 mm long 10 mm in diameter.

Point C: At this point it will enter another cylinder 5mm long and 7mm in diameter.

Im trying to figure out what the pressure will be at Point C so that I can choose the correct umbrella valve to use so that water flows out of the chamber.

2. May 24, 2013

sankalpmittal

Many...

If all the points : A,B and C lie in the same streamline, you can apply "Bernoulli's Theorem", at A,B and C respectively.

Best of luck buddy !! :)

3. May 24, 2013

anthonynichola

Thanks!! Does this apply also if I change the shape of the chamber? Meaning, instead of a cylinder its an oval? Im young and inexperienced lol

4. May 25, 2013

sankalpmittal

Provided that when the shape of chamber is changed, that is A,B and C are ovals, then also you can apply Bernoulli's Theorem, if A,B and C lie in a same streamline.

And So am I. :tongue:

5. May 26, 2013

Aero_UoP

If the flow is incrompressible and also irrotational then you can apply Bernulli's theorem between any points in the flow.