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Fluids, flow velocity and flow rate.

  • Thread starter Sum'Random
  • Start date
  • #1

Homework Statement


Water is flowing from a container through a 50mm diameter hole at 36 liters a minute. Calculate the flow rate in L/s and the flow velocity through the hole.


Homework Equations






The Attempt at a Solution


flow rate all i did was 36L/60s to get 0.6 L/s
flow velocity is where i am stuck.
Is it flow rate / Pi x r^2
So 0.6 / 0.00196 = 305.6 ms-1


missed a few classes due to illness typical most my assignment that is due was covered in them days i miss. Any help would be great.

Thanks
 

Answers and Replies

  • #2
TSny
Homework Helper
Gold Member
12,490
2,917
Hi, Sum'Random. Welcome to PF.

You have the right idea.

Is it flow rate / Pi x r^2
So 0.6 / 0.00196 = 305.6 ms-1
Watch those units. This is not the correct answer.
 
  • #3
ohh i see what i missed, Thank you

0.6 / Pi x(0.025)^2
= 305.6
305.6/1000
=0.306 ms
 

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