[CIG-SHORT] Damping in Dynamic Simulation

[Brad Aagaard]

Farrokh,

The numerical damping for explicit time stepping is to reduce spurious 
high frequency noise that cannot be resolved accurately (which may arise 
in spontaneous rupture simulations). None of the currently available 
material models include anelastic attenuation. I started on an 
implementation using a generalized Maxwell model but have never had time 
to finish it (GenMaxwellQpQsIsotropic3D). It possible for users to add 
material models without modifying the main PyLith code, so if you have a 
physical model for damping in mind, you can implement your own (see the 
manual section on extending PyLith for more information).

Regards,
Brad


On 04/27/2017 05:57 PM, Farrokh Sheibani wrote:
> Dear Pylith developers,
>
> I was wondering how we could include material damping in dynamic rupture
> simulation using Pylith. Can we somehow relate “Numerical Damping in
> Explicit Time Stepping” which is available in Pylith to physical damping
> ratio?
>
>
> Thank you in advance!
>
> Best regards,
>
> Farrokh
>
>
>
> Farrokh Sheibani, PhD
> Postdoctoral Research Associate
> Department of Earth Atmospheric and Planetary Sciences; Earth Resources
> Laboratory
> Massachusetts Institute of Technology
>
>
>
>
>
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>
>
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