Error while importing the gmsh to PyFR

[Chandra Shekhar Pant]

Hello All,

I am very new to the group as well to the PyFR, so please excuse me for my naive query. I am trying to import a 3D cylinder mesh (from gmsh) to PyFR but getting the following errors:

Traceback (most recent call last):
  File "/home/csp/anaconda3/bin/pyfr", line 10, in <module>
    sys.exit(main())
  File "/home/csp/anaconda3/lib/python3.7/site-packages/pyfr/__main__.py", line 112, in main
    args.process(args)
  File "/home/csp/anaconda3/lib/python3.7/site-packages/pyfr/__main__.py", line 126, in process_import
    mesh = reader.to_pyfrm()
  File "/home/csp/anaconda3/lib/python3.7/site-packages/pyfr/readers/base.py", line 20, in to_pyfrm
    mesh = self._to_raw_pyfrm()
  File "/home/csp/anaconda3/lib/python3.7/site-packages/pyfr/readers/gmsh.py", line 277, in _to_raw_pyfrm
    rawm.update(mesh.get_connectivity())
  File "/home/csp/anaconda3/lib/python3.7/site-packages/pyfr/readers/base.py", line 196, in get_connectivity
    raise ValueError('Unpaired faces in mesh')
ValueError: Unpaired faces in mesh

Even though I tried to get rid off the triangle cells, and now the gmsh report says that it has: 43510 Hexahedral and 15282 Quadrangles. I am facing this issue for couple of days,  so any suggestion/comment will be a great help to me. Thanks in advance.

[Freddie Witherden]

Hi Chandra,

There is likely a problem with your .geo file which is causing Gmsh to
generate a mesh with unpaired faces.

If you share your .geo file someone on the mailing list may be able to
help you track down the specific issue.

Regards, Freddie.

> --
> You received this message because you are subscribed to the Google
> Groups "PyFR Mailing List" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to pyfrmailingli...@googlegroups.com
> <mailto:pyfrmailingli...@googlegroups.com>.
> To view this discussion on the web, visit
> https://groups.google.com/d/msgid/pyfrmailinglist/68d0d573-c3f6-4f42-b3f6-17680208e00fo%40googlegroups.com
> <https://groups.google.com/d/msgid/pyfrmailinglist/68d0d573-c3f6-4f42-b3f6-17680208e00fo%40googlegroups.com?utm_medium=email&utm_source=footer>.

[Chandra Shekhar Pant]

Hello Freddie,

Many thanks for your prompt reply, as per your suggestion, I will take a closer look at the Gmsh file and will try to figure out the problem, if still the problem persist I will share the geo file in the group. Thanks again for your kind help and time.