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Pre-Processing using ANSA

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Old   February 27, 2018, 09:45
Default Pre-Processing using ANSA
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christian rossi
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Hi everyone,

I'm an OpenFOAM's new user and I am trying to simulate the typical case of a laminar flow around a cylinder with heat transfer (3D).
I created the geometries (.igs) of the two different subdomains using CATIA V5 and then I meshed them using ANSA (i am also a new user too).
I have seen that with ANSA it is possible to set up an OpenFOAM case and after the geometries have been meshed, I tried to assign the BCs using the BC TOOLS (OpenFOAM DECKS) but as I export the case as "OpenFOAM Output", the "boundary" file generated in the PolyMesh directory does not include my BCs.

Anyone could help me, please?

Thank you.
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Old   February 28, 2018, 03:50
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Anton Kidess
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The boundary file is not supposed to include your physical BCs.
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Old   February 28, 2018, 04:36
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Vangelis Skaperdas
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Dear Christian
You can setup your BCs in ANSA for OpenFOAM.

I suggest you have a look at the CFD tutorial Catalyst for OpenFOAM

You should launch ANSA in CFD mode from the launcher.

There is also a UDF that sets up automatically the boundary conditions on all PIDs based on some user input parameters.

Hope this helps

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Old   March 7, 2018, 08:41
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christian rossi
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Dear Vangelis,

Thank you very much for your hint!

Just a question...Do you know what type of BC I have to use in order to get the exchange of informations between the interface air-solid?

I was thinking to implement in my script constant/cylinder/polyMesh/boundary a BC called mappedWall but I don't know what sampleRegion and samplePatch stand for.

CYLINDER_GAMMA
{
type mappedWall;
sampleMode nearestPatchFace;
sampleRegion ;
samplePatch ;
startFace 3780;
nFaces 288;
}

best regards,

Christian
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