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Coefficient of flow formula definition

Question asked by Alessandro Tornincasa on May 16, 2013
Latest reply on May 16, 2013 by Jared Conway

Hi,

suppose you have a valve and you need to calculate CV coefficient.

This homepage shows its formula:

 

http://www.engineeringtoolbox.com/flow-coefficients-d_277.html

 

As you can see, the CV coefficient formula changes depending on:

- the type of fluid (e.g. liquid, gas, steam)

- the flow regime (laminar or tubulent, and therefore it depends on the Reynolds number)

 

Isn't there a way to automate creation of the CV coefficient formula depending on the fluid and flow regime ?

 

Or do you just have to re-create the CV formula everytime from scratch ?

 

Thanks,

 

Alex

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