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[ANSYS Meshing] Airfoil Meshing Pinch Control Tolerance |
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November 17, 2014, 09:00 |
Airfoil Meshing Pinch Control Tolerance
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#1 |
New Member
Diego Garcia Pardo
Join Date: Nov 2014
Posts: 3
Rep Power: 12 |
Hi all,
Anyone has had this problem before? "At least one pinch control has tolerance below one or several scoped size control. Reduce tolerance or remove any pinch control in close proximity with of any of such scoped size controls" I have tried to reduce pinch tolerance but it doesn't work. I attach a screen capture. I would like to make the mesh more uniform over the upper side of the airfoil. Thanks |
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January 19, 2015, 10:51 |
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#2 |
New Member
Join Date: Dec 2014
Posts: 5
Rep Power: 11 |
Hi, I have the same problem, did you fix it?
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February 24, 2015, 19:35 |
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#3 |
New Member
Join Date: Nov 2014
Posts: 9
Rep Power: 12 |
I have had this same issue as well. When I import the mesh into Fluent it results in ridiculous numbers for the lift and drag coefficients on my airfoil. My y+ values are correct for my turbulence model. I'm assuming this pinch issue might be causing this.
Has anyone found a solution to this? I'm getting really annoyed using Ansys Meshing. I have found it easier to use then ICEM in many ways but I might just suck it up and figure out ICEM if it gives me a better mesh. If anybody has a solution to this or any input on the problem please let me know. I have attached some pictures of my mesh. |
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February 24, 2015, 19:45 |
Not solution, but WorkAround
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#4 |
New Member
Diego Garcia Pardo
Join Date: Nov 2014
Posts: 3
Rep Power: 12 |
Hi!
I manage to workaround the problem by creating surfaces splits. I made the original cad with solidworks, So I just splitted the surfaces in solidworks and then import them back into Ansys. This however is a really tedious process. Recently I've been able to see that unstructured grids give less trouble when meshing, even though as it is well known, the loss of control over the mesh usually means that the control volumes are not perpendicular to the flow field thus tending to increase numerical error. Ansys mesh is simply not the best tool to mesh, but I haven't found any way better so far. I can't help much more, I am quite a beginner in this world. |
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June 8, 2015, 14:36 |
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#5 |
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starker
Join Date: Feb 2015
Posts: 4
Rep Power: 11 |
anyone know how to solve this problem?
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April 30, 2016, 03:46 |
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#6 |
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Join Date: Oct 2012
Posts: 1
Rep Power: 0 |
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January 16, 2019, 19:12 |
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#7 | |
New Member
Ali
Join Date: Jan 2019
Posts: 1
Rep Power: 0 |
Quote:
thank you in advance. |
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Tags |
2-d, airfoil, meshing, pinch |
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