[CIG-SEISMO] creating mesh file for a pipe model

[emanuele casarotti]

If you need absorbing condition also in the lateral surface of the
pipe you can manually set up that surface in one of the ymax

More details as soon as I get my computer

Emanuele

Il giorno 24/apr/2013, alle ore 18:27, Dimitri Komatitsch
<komatitsch at lma.cnrs-mrs.fr> ha scritto:

>
> Dear Volan Hu,
>
> I assume the pipe itself will be a free surface, thus I think you only
> need xmin and xmax (if you want to put absorbing conditions there), and
> nothing else.
> (in finite-element methods such as the SEM, if you impose nothing, you
> automatically get a free surface).
>
> We have never tried but I think it should work. Please let me know, I am
> interested in the answer (we have begun to use SPECFEM3D for industrial
> problems that do not involve seismic waves / earthquakes).
>
> Thank you,
> Dimitri.
>
> On 04/24/2013 05:19 PM, 胡久鹏 wrote:
>>
>>
>> Dear Help Team,
>>
>> I would like to compute the 3-D wave propagation in a water-filled pipe, with the source in the middle of the pipe.
>>
>> I wonder how to define the boundary condition for this purpose for usingcubit2specfem3d.py to export available mesh files.
>>
>> For general brick model,  six blocks are needed:face_topo,xmin, xmax, ymin, ymax and bottom. But there are only three faces in the pipe model:xmin,xmax and outside-cylinder surface.
>>
>> Thank you very much for your help/comments.
>>
>> Kind regards,
>>
>> Volan Hu
>>
>>
>>
>> <#>
>>
>>
>> _______________________________________________
>> CIG-SEISMO mailing list
>> CIG-SEISMO at geodynamics.org
>> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>>
>
> --
> Dimitri Komatitsch
> CNRS Research Director (DR CNRS), Laboratory of Mechanics and Acoustics,
> UPR 7051, Marseille, France    http://komatitsch.free.fr
> _______________________________________________
> CIG-SEISMO mailing list
> CIG-SEISMO at geodynamics.org
> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo