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There are non-conformal cyclic bc in OF 2.0.x?

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Old   November 14, 2011, 07:00
Question There are non-conformal cyclic bc in OF 2.0.x?
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Ivan Flaminio Cozza
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Hi foamers,
I need to simulate a case with non-conformal cyclic bc (i.e. the mesh on the two sides of the cyclic interface cannot be the same). Is there any chance to do it in OF 2.0.x or the only way is to use OF-ext?

Thanks!
Ivan
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Old   November 15, 2011, 06:07
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Laurens Van Dyck
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Is the geometry different or the mesh? Maybe you can check into the directmappedfield boundary condition.
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Old   November 15, 2011, 06:11
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Quote:
Originally Posted by laurensvd View Post
Is the geometry different or the mesh? Maybe you can check into the directmappedfield boundary condition.
The geometry is the same, but the mesh is not, as it is produced by an automatic mesh generator.

How does directmappedfield work?

Thanks a lot,
Ivan
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Old   November 15, 2011, 06:26
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And more, my cyclic boundaries are circular periodic.
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Old   November 15, 2011, 06:34
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Laurens Van Dyck
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I dont know anymore exactly how it works but check the source OFdir/src/finiteVolume/fvPatchFields/derived

There are several version of this direct mapped field and inside the code you can see at the top which information they require. Basically you need to declare somewhere the patch that you want mapped on the patch that you apply the BC to. I dont know if you can do that for both your patches as to simulate a cyclic condition.
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Old   November 21, 2011, 14:59
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Michael Ahlmann
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Have you gotten this to work? If so, could you post the solution. Thanks,

-Michael
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Old   November 24, 2011, 07:34
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Ivan Flaminio Cozza
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No Michael,
unfortunately it actually doesn't work, as directMapped is mono-directional, is not possible a two-way coupling. Up to now it seems that the only solution is cyclicGGI, but you have to install the ext version...
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