[gironidegirona]

Hi you all,

I'm trying to use openfoam as an interconnect for different processes and I'm interested on defining a boundary by face. I mean, I have the list of faces of a boundary but I would like to specify the value of the outlet flow of this boundary by face (I have mapped one model to the other so I know what it belongs to what).

Is it possible?

Thanks in advance!

[Tobi]

If you are talking about boundary faces, you can use codedFixedValue.

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[gironidegirona]

Originally Posted by Tobi

If you are talking about boundary faces, you can use codedFixedValue.

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Thank you Tobi, I maked that work for flow following this example: http://www.sourceflux.de/blog/the-co...ary-condition/

thanks! The thing is imagine I have a patch which is inlet and I want to have an alpha phase plus non-alpha phase on this face. I would like to create a region which is taking the same inlet speed of the whole patch but to be alpha inlet, and the rest non-alpha inlet. Is like the example provided before but with alpha and non-alpha inlet on the same boundary face, is it possible?

Thanks again!

[Tobi]

Of course it is possible. There for you just have to get the face values of alpha and code (based on alpha) you inlet profile. Finally you can do whatever you would like to do.

[gironidegirona]

Hey Tobi, thanks! I found out how to it, I was taking the code literally without thinking very much, what I did is on alpha.water (in my case).

redirectType basically is the name of the class I'm creating in my case "alphainRectangle" and as per proof of concept I'm taking the same strategy to set new values on a rectangle (in my case in a y-region inside the patch) and then modify the boundary according to what i need.

inlet
{
type codedFixedValue;
value uniform 0;
redirectType alphainRectangle;

code
#{


const fvPatch& boundaryPatch = patch();
const vectorField& Cf = boundaryPatch.Cf();

scalarField& field = *this;
scalar min = 0.00065;
scalar max = 0.0008;

forAll(Cf, faceI)
{
if (
(Cf[faceI].x() > min) &&
(Cf[faceI].x() < max)
)
{
field[faceI] = 1;
}
}
#};
}


Thanks again tobi!

I hope it'll help someone!