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Flow Equations

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#1 Moosa2


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Posted 03 August 2022 - 09:37 AM

Where to use the following equations?



Hagen Poiseuille equation

Hazen williams equation

Darcy Weisbach equation

#2 breizh


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Posted 03 August 2022 - 06:26 PM


Did you try your favorite search engine ?

To start with :

 Hagen–Poiseuille equation - Wikipedia

https://en.wikipedia...igation systems.



All equations are related to head losses. 

Hagen-Poiseuille is specific to laminar flow 

Hazen-Williams is used for water pipe networks ( empirical correlation) , examples : water distribution networks or fire fighting networks 

Darcy-Weisbach is the reference equation for liquids in pipes.


Good luck


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