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April 25th, 2017, 10:41 AM  #1 
Newbie Joined: Apr 2017 From: UK Posts: 2 Thanks: 0  Requesting Help with Water Flow rate problem
Hi all I am trying to calculate the flow rate of water through a 6mm pipe as i am working on a water wheel project with some friends the information i have to offer is this i have a 25L water container  Height: 370mm  Width: 270mm  Length: 350mm  there is a 6mm pipe attached 90ยบ to the base and flush with it the top of the container is open to the atmosphere i am hoping someone here can help me learn how to work this out thanks for any help offered RedCrow 
April 25th, 2017, 10:50 AM  #2 
Senior Member Joined: Dec 2015 From: Earth Posts: 223 Thanks: 26 
as long as $\displaystyle \rho$ acts upon it , then $\displaystyle \; $ $\displaystyle p=\rho_a \rho$

April 25th, 2017, 11:08 AM  #3 
Newbie Joined: Apr 2017 From: UK Posts: 2 Thanks: 0 
sorry but we have tried to work out how that will help i a little unsure is there any chance you could explain with a touch of detail or illumination on what each factor in that equation is ?

April 26th, 2017, 01:29 AM  #4 
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,099 Thanks: 703 Math Focus: Physics, mathematical modelling, numerical and computational solutions  
April 29th, 2017, 12:10 AM  #5 
Newbie Joined: Apr 2017 From: Japan Posts: 1 Thanks: 0 
you'll need to use Bernoulli equation to calculate the flow, you can simply use v = sqrt(2*g*H) this one will give you the flow velocity at the connection for given water head "H", however, this will be time dependent since you're using a tank of limited capacity. it will also be inaccurate if you tried to verify your calculations by measuring the flow at the end of the pipe, in this case you'll need the pipe length and a friction formula (darcyweisbach for example).


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