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An Empty Cavity was Generated
Posted Jul 8, 2009, 10:10 a.m. EDT Computational Fluid Dynamics (CFD), Mesh Version 5.1 2 Replies
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Can anyone explain what this error message means please?
Messages:
An empty cavity was generated
Failed to insert point
- x coordinate: 5.00633e-005
- y coordinate: 0.002645
- z coordinate: -4.5325e-008
It happens whenever I try to mesh my system, but I cannot find any indication of what it means so as to know how to fix it.
Thanks,
Jon
Messages:
An empty cavity was generated
Failed to insert point
- x coordinate: 5.00633e-005
- y coordinate: 0.002645
- z coordinate: -4.5325e-008
It happens whenever I try to mesh my system, but I cannot find any indication of what it means so as to know how to fix it.
Thanks,
Jon
2 Replies Last Post Sep 17, 2016, 12:03 p.m. EDT
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Posted:
2 decades ago
Hello
for me its look like your geometry is overlapping (do you have several parts that are not 100% adjacent ?), particularly around the location given in the message (its [m] probably the default units you are using).
If the parts are not correctly adjacent, have been moved, or imported with a not fine enough resolution ("File - Import - Cad from file- Options - Absolute Import tolarance"), you can get such messages. I suspect the import option as your error is close to 50 um in X, it could be that you should import it with a finer tolarance, if it was imported. In these cases you can then easily get some overlaps or "holes" created
Sometimes you can get rid of this error by meshing with smaller mesh elements, do it locally, force the mesher along an edge.
Good luck
for me its look like your geometry is overlapping (do you have several parts that are not 100% adjacent ?), particularly around the location given in the message (its [m] probably the default units you are using).
If the parts are not correctly adjacent, have been moved, or imported with a not fine enough resolution ("File - Import - Cad from file- Options - Absolute Import tolarance"), you can get such messages. I suspect the import option as your error is close to 50 um in X, it could be that you should import it with a finer tolarance, if it was imported. In these cases you can then easily get some overlaps or "holes" created
Sometimes you can get rid of this error by meshing with smaller mesh elements, do it locally, force the mesher along an edge.
Good luck
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Posted:
8 years ago
Hi
I too got the same error, how to solve the error i have also tried by changing the tolerance but there is no change in the error so kindly please tell me hoe to solve this error.
Thank you
Regards
I too got the same error, how to solve the error i have also tried by changing the tolerance but there is no change in the error so kindly please tell me hoe to solve this error.
Thank you
Regards