Inlet Wall to Inlet Patch

kurne · April 25, 2011, 04:12

Dear All

I have successfully transfer the mesh from the ICEM to OpenFOAM case.In ICEM i have an inlet but while transferring the mesh from ICEM to OpenFOAM the Inlet was converted to wall when i check the boundary file.

I want to ask a question while simulating in OpenFOAM it will take the inlet wall or inlet patch.

Or should i change inlet wall to inlet patch in boundary file.

Thanks in Advance.

maddalena · April 26, 2011, 03:43

Quote:

Originally Posted by kurne

I want to ask a question while simulating in OpenFOAM it will take the inlet wall or inlet patch.

Or should i change inlet wall to inlet patch in boundary file.

Hello,
OF will take it as defined in constant/polyMesh/boundary. Thus if your inlet is defined as wall, it will be used as wall, if it is defined as patch, it will be used as patch. Sounds obvious, does it not?

mad

kurne · April 26, 2011, 05:33

Dear maddalena

Thank you very much for replying and i got it through doing experiments also by changing the boundary file.

Thanks Once Again.

immortality · January 22, 2013, 02:20

a question!if i set a face to patch in boundary file.then at blockMeshDict i set its U to a value and p and T to zeroGradient(like a moving wall as in cavity)
Does it produce any conflict?then OF assumes it patch(fluid)or wall(solid)?
How about reciprocal of it.mean wall in boundary but patch in blockMeshDict?
Thanks.

maddalena · January 23, 2013, 07:23

Hi,
I did not get what you meant. Anyway:
polyMesh/boundary file: wall --> flow cannot go through the patch --> i.e. U = (0 0 0), p = zeroGradient
polyMesh/boundary file: patch --> flow can go through this patch --> i.e. U = (10 0 0) p = zerogradient; or: U = zeroGradient; p = fixedValue.
hope this help

mad

April 25, 2011, 04:12	Inlet Wall to Inlet Patch	#1
kurne Member Kurne Join Date: Aug 2010 Location: Pune, INDIA Posts: 88 Rep Power: 16	Dear All I have successfully transfer the mesh from the ICEM to OpenFOAM case.In ICEM i have an inlet but while transferring the mesh from ICEM to OpenFOAM the Inlet was converted to wall when i check the boundary file. I want to ask a question while simulating in OpenFOAM it will take the inlet wall or inlet patch. Or should i change inlet wall to inlet patch in boundary file. Thanks in Advance. __________________ Simulation Is Determination Of Imagination Towards Approximation ® Best Regards Mubeen K Kurne

April 26, 2011, 05:33		#3
kurne Member Kurne Join Date: Aug 2010 Location: Pune, INDIA Posts: 88 Rep Power: 16	Dear maddalena Thank you very much for replying and i got it through doing experiments also by changing the boundary file. Thanks Once Again. __________________ Simulation Is Determination Of Imagination Towards Approximation ® Best Regards Mubeen K Kurne

January 23, 2013, 07:23		#5
maddalena Senior Member maddalena Join Date: Mar 2009 Posts: 436 Rep Power: 23	Hi, I did not get what you meant. Anyway: polyMesh/boundary file: wall --> flow cannot go through the patch --> i.e. U = (0 0 0), p = zeroGradient polyMesh/boundary file: patch --> flow can go through this patch --> i.e. U = (10 0 0) p = zerogradient; or: U = zeroGradient; p = fixedValue. hope this help mad immortality and aow like this.

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January 22, 2013, 02:20		#4
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	a question!if i set a face to patch in boundary file.then at blockMeshDict i set its U to a value and p and T to zeroGradient(like a moving wall as in cavity) Does it produce any conflict?then OF assumes it patch(fluid)or wall(solid)? How about reciprocal of it.mean wall in boundary but patch in blockMeshDict? Thanks.