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Pressure in pipe

  • Thread starter foo9008
  • Start date
  • #1
678
4

Homework Statement


8WwL9BO.png
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in this question , the Pressure at entrance is not given , how to do this?

Homework Equations




The Attempt at a Solution


does the author mean the pressure at entrance = pressure at exit
 

Answers and Replies

  • #2
billy_joule
Science Advisor
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Homework Statement



in this question , the Pressure at entrance is not given ,
You are expected to find it from the depth of the tank.
 
  • #3
678
4
You are expected to find it from the depth of the tank.
i am going to use this equation to solve this question , where z = 10 m what is the pressure at ENTRANCE ? it's not given
hMiwoG0.png

p/s : hf = 0
 
  • #4
billy_joule
Science Advisor
1,200
330
It's unclear where the two points on your streamline are.pipe entry and exit? Or free surface and pipe exit?
If z=0 is along the pipe axis then z=10 is the water surface, and the pressure there is equal to the exit pressure so both can be set to zero.
 

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