[CIG-SEISMO] SH convergence problem in SPECFEM3D

[Dimitri Komatitsch]

Hi,

That sounds weird because the code does not distinguish between Love and 
Rayleigh waves, since it solves the full wave equation (without 
decomposing it nor projecting it).
The problem must be elsewhere.

Best regards,
Dimitri.

On 02/17/2016 07:14 PM, 林俊宏 wrote:
> Hi !
>
> This is Chun-Hung Lin from Taiwan. My group work on the application of
> surface wave testing in solving geotechnical problems in National Chiao
> Tung University, Taiwan.
>
> I greatly appreciate that you provide such a great tool for us to
> simulate the 3D propagation of seismic wave. It help us to consider the
> 3D effect when applying surface wave testing. We had done a study on the
> application of  surface wave testing in jet grouting based on the
> SPECFEM3D and will be published in the near future.
>
> In the beginning we focus on the Rayleigh wave. SPECFEM3D works very
> well. However, few weeks ago, we found it is not convergence for Love
> wave, even we try to minimize our mesh size and time step(as shown in
> attached ppt). Could you please provide us some experience or hints
> about the rules to make convergence for Love wave(for the Rayleigh wave,
> we try and error based on our experience in finite difference method)?
>
> Thanks for your kind help!
>
> Sincerely,
> Chun-Hung
> ========================================================
>   Chun-Hung Lin  Ph.D,
>   Assistant Research Fellow, Disaster Prevention & Water Environment
> Research Center
>   National Chiao Tung University, #1001 University Rd., Hsinchu, Taiwan
>   Tel: +886-3-571-2121#55265 <tel:%2B886-3-571-2121%2355265>,     Mobil:
> +886-922-585100 <tel:%2B886-922-585100>
>   Fax: +886-3-573-4116 <tel:%2B886-3-573-4116>
>   Email: chlin.ce at gmail.com <mailto:chlin.ce at gmail.com>
> ========================================================
>
>
>
>
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>

-- 
Dimitri Komatitsch
CNRS Research Director (DR CNRS), Laboratory of Mechanics and Acoustics,
UPR 7051, Marseille, France    http://komatitsch.free.fr