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-   -   Modeling Fully Developed Flow (using simple example) (http://www.cfd-online.com/Forums/openfoam/93931-modeling-fully-developed-flow-using-simple-example.html)

MOHAMMAD67 October 31, 2011 09:52

Modeling Fully Developed Flow (using simple example)
 
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Dear friends hi;

I searched about fully developed flow in inlet and found different methods but they are not clear enough. I want to ask all people to share their experience about this subject. what is the best way to do it?
It's good to implement your method in a simple example to be a helpful for all people who face this problem.

the following exapmle is a 2 meter pipe with 0.5 m radius.
How should I apply the velocity profile? ( the velocity is 3 m/s)


Best Regard

nimasam October 31, 2011 10:34

1) you can use a cyclic boundary condition for inlet and outlet look at channelFoam

2) you can imply a non uniform boundary condition at inlet for U for example U=U0*(1- (r/R)^2) with groovyBC

and more ...


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