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Trouble with MergePatchPairs: Duplicate Point Found in Cut Face

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Old   August 31, 2010, 23:13
Default Trouble with MergePatchPairs: Duplicate Point Found in Cut Face
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Daniel
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Good evening all,

I am trying to produce an airfoil with a flap with overlapping geometry but are separate patches (so that they can rotate relative to each other). To test this, I have attempted to create a mesh with some overlap, however I am given the following error when I run blockMesh:

Code:
...
Adding point and face zones
Creating attachPolyTopoChanger


--> FOAM FATAL ERROR: 
Duplicate point found in cut face. Error in the face cutting algorithm for global face 4(97410 97428 97430 97412) local face 4(151 150 152 153)
Slave size: 250 Master size: 90 index: 74.
Face: 
41
(
97411
97429
etc
I am unfamiliar with this type of error, and I do not know how to fix this problem. Can anyone suggest a solution? I have attached the blockMeshDict, the log file for the error (though I shortened the lists with "...") and a visual representation of the mesh (this shows the . I would appreciate any help that could be offered.

Regards,

Dan
Attached Files
File Type: pdf Mesh Generator v9C.pdf (7.6 KB, 19 views)
File Type: doc log.doc (19.0 KB, 4 views)
File Type: zip blockMeshDict.zip (10.8 KB, 9 views)
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Old   September 1, 2010, 00:02
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Martin
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Sorry, false alarm by me... first block is fine... problem is somewhere else...

Martin

Last edited by MartinB; September 1, 2010 at 00:15. Reason: Misinterpretation by me...
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Old   March 24, 2013, 15:25
Default Hi Daniel
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Sasan Ghomi
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Quote:
Originally Posted by dancfd View Post
Good evening all,

I am trying to produce an airfoil with a flap with overlapping geometry but are separate patches (so that they can rotate relative to each other). To test this, I have attempted to create a mesh with some overlap, however I am given the following error when I run blockMesh:

Code:
...
Adding point and face zones
Creating attachPolyTopoChanger


--> FOAM FATAL ERROR: 
Duplicate point found in cut face. Error in the face cutting algorithm for global face 4(97410 97428 97430 97412) local face 4(151 150 152 153)
Slave size: 250 Master size: 90 index: 74.
Face: 
41
(
97411
97429
etc
I am unfamiliar with this type of error, and I do not know how to fix this problem. Can anyone suggest a solution? I have attached the blockMeshDict, the log file for the error (though I shortened the lists with "...") and a visual representation of the mesh (this shows the . I would appreciate any help that could be offered.

Regards,

Dan
Hi Daniel

Did you find the origin of this error?
I have a same error for engine simulation (sliding interface for valves)...
How can I fix this error?

Thanks and best regards,
Sasan.
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Old   March 24, 2013, 18:26
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Daniel
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Hello Sasan,

Unfortunately not; I had to remove the oscillating flap from the scope of my project.

Best of luck.

Dan
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Old   March 13, 2014, 05:01
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Albrecht vBoetticher
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I have the same error with stitch mesh. Check mesh is OK. Any hints?
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