[CIG-SHORT] PyLith Dynamic Simulations

[Brad Aagaard]

Maryam,

Have you looked at the PyLith JGR paper? It and the manual have pretty 
much all the information about forumulation except the nitty gritty 
details that are in the code itself.

Aagaard, B. T., M. G. Knepley, and C. A. Williams (2013), A domain 
decomposition approach to implementing fault slip in finite-element 
models of quasi-static and dynamic crustal deformation, Journal of 
Geophysical Research: Solid Earth, 118, 3059–3079, doi: 10.1002/jgrb.50217.

In the new version of PyLith (which includes multiphysics), we are using 
the PETSc time stepping object to manage the time stepping. We also plan 
to change the meaning of the Lagrange multiplier for spontaneous 
(dynamic) fault rupture. So several things will be changing.

Regards,
Brad


On 05/07/2018 01:02 PM, Maryam Ali A Alghannam wrote:
> Hi,
> 
> My name is Maryam, a PyLith user and prospective Hackathon 2018 
> participant. I'm interested in the dynamic simulations. I went over the 
> manual, but I still have questions. In particular, I'd like to get more 
> details regarding the formulation, algebraic system, and solution of the 
> dynamic problem including Lagrange multipliers (rn, rp, bn, bp).
> 
> I'd appreciate it if you could help.
> 
> Thank you,
> Maryam Alghannam
> Graduate student, MIT
>