Extract surfaces from a mesh on latest version
Dear all, Extracting a surface from a mesh file (.msh.xml) on the latest nektar version, 4.5.0, is not well performed. The resulting output file does not contain the corresponding elements on the CURVED section. When the same mesh file is used on a previous nektar version, 4.4.1, it is properly done, suggesting that some kind of issue with the 4.5.0 version or maybe the commands are not the same. Thank you. Cheers, Guillermo
Hi Guillermo, Do you have an example so I can see what is required to get it working again. Thanks, Spencer.
On 19 Dec 2018, at 20:31, Guillermo <guillermo180395@gmail.com> wrote:
Dear all,
Extracting a surface from a mesh file (.msh.xml) on the latest nektar version, 4.5.0, is not well performed. The resulting output file does not contain the corresponding elements on the CURVED section. When the same mesh file is used on a previous nektar version, 4.4.1, it is properly done, suggesting that some kind of issue with the 4.5.0 version or maybe the commands are not the same.
Thank you.
Cheers, Guillermo
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin FREng, FRAeS Head, Aerodynamics, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/
Hi Sherwin, Thanks for the response. As an example I took the mesh (.geo) for the cylinder tutorial from nektar++ website and converted the .geo to .msh. Then I used the following commands to extract the circle (using nektar 4.5.0): NekMesh Cylinder.msh Cylinder.msh.xml NekMesh -m extract:surf=151,152 Cylinder.msh.xml Cylinder.msh.circle.xml As you can see, there is no </CURVED> section in the Cylinder.msh.circle.xml file. However, when repeating the same process with nektar++ 4.4.1, there is a CURVED section. I attach all files I have used as well as well as the resulting files. Thanks, Guillermo On 2/1/19 19:53, Sherwin, Spencer J wrote:
Hi Guillermo,
Do you have an example so I can see what is required to get it working again.
Thanks, Spencer.
On 19 Dec 2018, at 20:31, Guillermo <guillermo180395@gmail.com> wrote:
Dear all,
Extracting a surface from a mesh file (.msh.xml) on the latest nektar version, 4.5.0, is not well performed. The resulting output file does not contain the corresponding elements on the CURVED section. When the same mesh file is used on a previous nektar version, 4.4.1, it is properly done, suggesting that some kind of issue with the 4.5.0 version or maybe the commands are not the same.
Thank you.
Cheers, Guillermo
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin FREng, FRAeS Head, Aerodynamics, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/
HI Guillermo, I think I have found a solution and put it in branch fix/NekMesh_Extract1D Please see if this works for you and we will then try and get this merged into master. Cheers, Spencer.
On 3 Jan 2019, at 18:30, Guillermo <guillermo180395@gmail.com> wrote:
Hi Sherwin,
Thanks for the response. As an example I took the mesh (.geo) for the cylinder tutorial from nektar++ website and converted the .geo to .msh. Then I used the following commands to extract the circle (using nektar 4.5.0):
NekMesh Cylinder.msh Cylinder.msh.xml NekMesh -m extract:surf=151,152 Cylinder.msh.xml Cylinder.msh.circle.xml
As you can see, there is no </CURVED> section in the Cylinder.msh.circle.xml file. However, when repeating the same process with nektar++ 4.4.1, there is a CURVED section.
I attach all files I have used as well as well as the resulting files.
Thanks, Guillermo
On 2/1/19 19:53, Sherwin, Spencer J wrote:
Hi Guillermo,
Do you have an example so I can see what is required to get it working again.
Thanks, Spencer.
On 19 Dec 2018, at 20:31, Guillermo <guillermo180395@gmail.com> wrote:
Dear all,
Extracting a surface from a mesh file (.msh.xml) on the latest nektar version, 4.5.0, is not well performed. The resulting output file does not contain the corresponding elements on the CURVED section. When the same mesh file is used on a previous nektar version, 4.4.1, it is properly done, suggesting that some kind of issue with the 4.5.0 version or maybe the commands are not the same.
Thank you.
Cheers, Guillermo
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin FREng, FRAeS Head, Aerodynamics, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/
<geometry.tar.gz>
Spencer Sherwin FREng, FRAeS Head, Aerodynamics, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/
Hi Spencer, Sorry for a slow response. I have tested with the new ProcessExtractSurf.cpp file and now is working properly. Please, find attached all the results. Thank you for your help, Guillermo On 05/01/2019 22:25, Sherwin, Spencer J wrote:
HI Guillermo,
I think I have found a solution and put it in branch fix/NekMesh_Extract1D
Please see if this works for you and we will then try and get this merged into master.
Cheers, Spencer.
On 3 Jan 2019, at 18:30, Guillermo <guillermo180395@gmail.com> wrote:
Hi Sherwin,
Thanks for the response. As an example I took the mesh (.geo) for the cylinder tutorial from nektar++ website and converted the .geo to .msh. Then I used the following commands to extract the circle (using nektar 4.5.0):
NekMesh Cylinder.msh Cylinder.msh.xml NekMesh -m extract:surf=151,152 Cylinder.msh.xml Cylinder.msh.circle.xml
As you can see, there is no </CURVED> section in the Cylinder.msh.circle.xml file. However, when repeating the same process with nektar++ 4.4.1, there is a CURVED section.
I attach all files I have used as well as well as the resulting files.
Thanks, Guillermo
On 2/1/19 19:53, Sherwin, Spencer J wrote:
Hi Guillermo,
Do you have an example so I can see what is required to get it working again.
Thanks, Spencer.
On 19 Dec 2018, at 20:31, Guillermo <guillermo180395@gmail.com> wrote:
Dear all,
Extracting a surface from a mesh file (.msh.xml) on the latest nektar version, 4.5.0, is not well performed. The resulting output file does not contain the corresponding elements on the CURVED section. When the same mesh file is used on a previous nektar version, 4.4.1, it is properly done, suggesting that some kind of issue with the 4.5.0 version or maybe the commands are not the same.
Thank you.
Cheers, Guillermo
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin FREng, FRAeS Head, Aerodynamics, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/
<geometry.tar.gz> Spencer Sherwin FREng, FRAeS Head, Aerodynamics, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/
participants (2)
-
Guillermo
-
Sherwin, Spencer J