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Volume discharged

  • Thread starter badman
  • Start date
  • #1
57
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A small circular hole 6.00 mm in diameter is cut in the side of a large water tank, 14.0 m below the water level in the tank. The top of the tank is open to the air.

i found the first speed
What is the speed of efflux?
16.6 m/sCorrect



now it asks me to find the volume discharged per unit time

What is the volume discharged per unit time?
 

Answers and Replies

  • #2
57
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anyone, help??
 
  • #3
429
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badman said:
anyone, help??
you're so close by thinking in terms of flux!

the rate of change in volume is given by the flux of the velocity of the fluid through that area.

so think how to calculate that... (unit analysis will work!) :tongue:
 
  • #4
Doc Al
Mentor
44,906
1,169
If you have the speed through the hole and the area of the hole, you should be able to figure out the volume flow rate. Think of a tube of fluid leaving the hole. In a given time, how long would the tube be? And what would its volume be?
 
  • #5
57
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nvm.........
 
  • #6
mukundpa
Homework Helper
524
3
...........Av
 

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