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[ANSYS Meshing] tolerance of geometry is large. How to reduce?

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Old   October 15, 2012, 11:35
Default tolerance of geometry is large. How to reduce?
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I got a warning from ANSYS meshing:
The tolerance of the geometry is larger than the applied tessellation refinement tolerance. This might lead to an uneven mesh and/or to poor geometric accuracy of the mesh.

the min mesh size was 2e-5 so I can get y+~1.
the geometry was built in workbench DM.
is there a way to modify the default tolerance of the geometry?

Last edited by foolboy007; October 15, 2012 at 22:30.
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Old   January 28, 2014, 13:17
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Did you manage to solve this problem eventually?
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Old   May 19, 2014, 15:20
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I ran into same problem and with refining mesh, it was solve.
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Old   January 21, 2015, 05:31
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refining mesh as in reducing local min size?
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Old   January 23, 2015, 11:44
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Sometimes it helps,

1. Click on the name of your geometry on the top of the modeling tree. -> Change "Model tolerance" to "Tight".

2. For curvatures tone "Facet qualities" to higher value.
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Old   February 24, 2015, 00:31
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i cant find the model tolerance settings (note that i am using ansys fluent).

can you guide me to solve the proposed problem?
"The tolerance of the geometry is larger than the applied tessellation refinement tolerance. This might lead to an uneven mesh and/or to poor geometric accuracy of the mesh."
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Old   February 24, 2015, 20:04
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muhammad hazim bin mohd halimi
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Quote:
Originally Posted by Farid View Post
Sometimes it helps,

1. Click on the name of your geometry on the top of the modeling tree. -> Change "Model tolerance" to "Tight".

2. For curvatures tone "Facet qualities" to higher value.
i cant find the model tolerance settings (note that i am using ansys fluent).
where can i find that option on ansys fluent?

can you guide me to solve the proposed problem?
"The tolerance of the geometry is larger than the applied tessellation refinement tolerance. This might lead to an uneven mesh and/or to poor geometric accuracy of the mesh."
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Old   March 9, 2015, 11:02
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I have no idea to change the tolerance in fluent. What I wrote in the previous post is for Design modeler. The tree outline of the geometry on the left hand side. Just click on the very first line. In table of details view, you would see "Model Tolerance"
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Old   March 9, 2015, 13:04
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i got it already. thank you farid.
i also fix the proximity angle and the tolerance is smaller and better.
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Old   April 15, 2015, 10:12
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Could you post pictures of fixing this error? I don't find how to change Model tolerance. Thanks!
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Old   April 16, 2015, 13:56
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Quote:
Originally Posted by mipt_khoi View Post
Could you post pictures of fixing this error? I don't find how to change Model tolerance. Thanks!
i dint change the model tolerance.
i just reduce the Curvature Normal Angle.


steps:
mesh>sizing>curvature normal angle
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Old   January 28, 2016, 14:49
Default changing geometry dimensions
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Quote:
Originally Posted by Farid View Post
Sometimes it helps,

1. Click on the name of your geometry on the top of the modeling tree. -> Change "Model tolerance" to "Tight".

2. For curvatures tone "Facet qualities" to higher value.

Dear Fraid, your answer to this thread helped me alot. I have only one question to you. Does changing the model tolerance affect the geometry dimensions or any thing else?. I got issue that the dimensions of my geometry in fluent differ a lot. I have noticed that when creating plans
Thank you in advance for your helo
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