cyclic conditions

Rickard.Solsjo · February 2, 2012, 11:09

Hi all
I just want a quick and dirty description of how to create cyclic conditions in openfoam

Lets say I have 1/4 of a spray bomb
What do I name the patches in blockMeshDict
and
what do I do in createPatchDict?

Ive been looking around for a few explanations and it seems like this is a relevant issue to be more explained.

Regards
Rick

stevenvanharen · February 3, 2012, 06:45

Just mesh your domain using patches in blockMesh.

Then use createPatch to generate cyclics. Just as you describe.

Look in:

$FOAM_APP/utilities/mesh/manipulation/createPatch

For an example for rotational cyclics in the example createPatchDict.

Rickard.Solsjo · February 3, 2012, 07:02

Okay, so basically:
If I add two patches under the same name, then in createPatchDict I just specify this name and it understands that these two are connceted.
I thought I had to name the patches with different names

Regards
R

stevenvanharen · February 3, 2012, 08:06

No, use two names for your two patches in de blockMeshDict, and then for example:

Code:

patches (inlet outlet);

In createPatchDict.

February 2, 2012, 11:09	cyclic conditions	#1
Rickard.Solsjo Senior Member Rickard Join Date: May 2010 Location: Lund, Skåne, Sweden Posts: 143 Rep Power: 15	Hi all I just want a quick and dirty description of how to create cyclic conditions in openfoam Lets say I have 1/4 of a spray bomb What do I name the patches in blockMeshDict and what do I do in createPatchDict? Ive been looking around for a few explanations and it seems like this is a relevant issue to be more explained. Regards Rick

February 3, 2012, 08:06		#4
stevenvanharen Senior Member Steven van Haren Join Date: Aug 2010 Location: The Netherlands Posts: 149 Rep Power: 15	No, use two names for your two patches in de blockMeshDict, and then for example: Code: patches (inlet outlet); In createPatchDict.

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February 3, 2012, 06:45		#2
stevenvanharen Senior Member Steven van Haren Join Date: Aug 2010 Location: The Netherlands Posts: 149 Rep Power: 15	Just mesh your domain using patches in blockMesh. Then use createPatch to generate cyclics. Just as you describe. Look in: $FOAM_APP/utilities/mesh/manipulation/createPatch For an example for rotational cyclics in the example createPatchDict.

February 3, 2012, 07:02		#3
Rickard.Solsjo Senior Member Rickard Join Date: May 2010 Location: Lund, Skåne, Sweden Posts: 143 Rep Power: 15	Okay, so basically: If I add two patches under the same name, then in createPatchDict I just specify this name and it understands that these two are connceted. I thought I had to name the patches with different names Regards R