Water AM - Pipe Flow

[3gorgesdam]

those answers are to different to treat the problem either way.

Thank you, captain obvious

Pressure pipe seemed like a good method to me, but my only concern with that method is that if you assume that V1 is 0, following that logic V2 would be 0 also. Using the orifice, that does not necessarily mean that the pipe is flowing full. Any other ideas?

-GT

Why V1=0 then V2 has to be zero too?? Isn't that true when they are on the same level only??

 

[3gorgesdam]

Ok, here is the answer.
V=Sqrt(2gH)

v=Sqrt(2xgxh)=13.89=14ft/s

Q=VA

A=piexD^2/4=0.3491

Q=13.89x0.3491=4.84 cfs

so, I agree with GTScott.

THis is the way to do. I got the same thing.

 

[MetroRAFB]

Let this ME pose the question:

What's the pressure in the pipe as stated in the original post?

:study

Talk amongst yourselves.....

 

[MetroRAFB]

I'm guessing pressure isn't anything Civils are interested in?

:dunno:

 

[Blu1913]

Sure Civils are interested in pressure...

What is the absolute pressure on my cranium if the gage pressure is 60,000 psi?

I CANT TAKE THIS ANYMORE!!!! :suicide: :suicide: :suicide: :suicide: :suicide: :suicide:

 

[MetroRAFB]

:wtf:

You didn't give me enough information to answer the problem. What planet are you currently on? Perhaps you're in deep space? You could even be working on the moons of Endor or maybe the Starship Enterprise?

Give me something to work with.....

 

[SCPE]

Let this ME pose the question:
What's the pressure in the pipe as stated in the original post?

:study

Talk amongst yourselves.....

3 feet at the pipe invert. 2 ft 4 inches at the top of pipe.

 

[Blu1913]

Metro, I was just simple stating that my head is about to explode from freakin studying and the pressure of this test for me...hence the 60,000 psi gage pressure..........

However, the absoulte pressure on my head would be 60,000psi + 14.696psi =60,014.696.

:suicide:

 

[MetroRAFB]

However, the absoulte pressure on my head would be 60,000psi + 14.696psi =60,014.696.

Agreed, if you are indeed on Earth.

 

[MetroRAFB]

Let this ME pose the question:
What's the pressure in the pipe as stated in the original post?

:study

Talk amongst yourselves.....

3 feet at the pipe invert. 2 ft 4 inches at the top of pipe.

Allow me to be more specific:

What's the pressure in the pipe (psi) as stated in the original post?

 

[purduegrad]

3 feet at the pipe invert. 2 ft 4 inches at the top of pipe.

I got about a $12,000 raise worth of pressure and a wife and a family of 6 who need the money. Now that's pressure!!!! AHHHHH!

Good luck everyone, hopefully two times is a charm.