[Nek5000-users] Using mshconvert With Curves

[nek5000-users at lists.mcs.anl.gov]

Dear Marco,

I have actually very little experience with the script. Some people used it
here (at KTH) for 2D and 3D wings and we never encountered such an issue.
If you cannot get it to work for simple cases and if that helps, I can send
you a simple 2D msh file that works. From there, you could compare the
files format... I am sorry that I cannot help much more than that.

Best,
Nicolas

On Thu, Aug 10, 2017 at 5:44 PM, <nek5000-users at lists.mcs.anl.gov> wrote:

> Dear Nicolas,
>
> thank you for your reply. We tested the python script on different meshes
> to get familiar with it before diving into our working mesh. We can
> generate a rea file with velocity and temperature boundary conditions fine.
> However, whenever we try to use the curved side option we get the following
> error message:
>
> Traceback (most recent call last):
>   File "makemesh.py", line 6, in <module>
>     convert('Single-Pitch-Mesh.msh',curves={13:{'type': 'm'},14:{'type':
> 'm'},15:{'type': 'm'}},bcs={13:'W',14:'W',15:'W',16:'O',17:'v'})
>   File "/Users/v9g/Documents/Nek5000/mshconvert.py", line 1525, in convert
>     read_curved_sides(curves)
>   File "/Users/v9g/Documents/Nek5000/mshconvert.py", line 751, in
> read_curved_sides
>     cell_face_m.append((cell, face_map[cell][(nds[0], nds[1])],
> face_number))
> KeyError: (20355, 20211)
>
> I am not sure how to proceed next, besides digging in the source code and
> try to resolve this error. We are currently trying to debug on a simpler
> geometry with curved boundaries, but we would really appreciate any help.
>
> Thanks,
>
> Marco
>
> On Aug 10, 2017, at 10:41 AM, nek5000-users at lists.mcs.anl.gov wrote:
>
> Dear Tommy,
>
> Besides the short REAMDE file, there is a detailed explanation on how to
> use the script at the end of the file 'mshconvert.py' (starting from line
> 1385).
> Basically, you need to identify the IDs of the curved boundaries in the
> .msh file and give it a Nek type (either midpoint 'm' or curve 'C' + some
> info: I think that only the radius is required, the rest is optional) and
> pass this info to the script in the form of a Python dictionary called
> 'curves'.
> If the problem persists, feel free to share some details about the error
> that you get.
>
> Best,
> Nicolas
>
> On Wed, Aug 9, 2017 at 10:43 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
>
>> Greetings,
>>
>>
>> I am trying to use the mshconvert script to produce a rea file for a
>> helical geometry. I am running into errors when I try to define the
>> boundaries that have curved surfaces. Has anyone used it to generate a rea
>> file with curved data?
>>
>>
>> Thanks,
>>
>>
>> Tommy
>>
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