[CIG-SHORT] ask for help about simulation of wave field with dynamic fault

[surendra at caltech.edu]

On Mar 30, 2013, at 7:40 AM, yaoxiaodong1986 wrote:

> The new Features in PyLith,Spatial and temporal traction variations for spontaneous rupture,does it mean that the traction restriction apply on the fault can variate spatially and temporally ,or does it meant that the simulation could compute the traction on the fault for spontaneous rupture spatially and temporally?

Initial tractions usually applied at time t=0 correspond to the spatial variation of tractions.  Current efforts include incorporating variation in time as well which means initial can't be applied for a duration t0 (< total simulation duration) instead of just at t=0.  Refer to latest scecdynrup benchmarks.

> In PyLith Tips, Dynamic simulations Start with a static simulation. what does it mean? does it mean a simulation with dynamic fault could not start spontaneously, but start by stimulating with  kinematic fault on the rupture breaking point .

Can you point to exact location where this is written?  Using PyLith, you can run spontaneously propagating dynamic ruptures independent of kinematic ruptures.  These dynamic and kinematic terms are used to describe fault behavior.
There is another aspect of dynamic that distinguishes from quasi-static and static.  Here dynamic rupture to account for inertial effects.

You can refer to PyLith configuration and Cubit journal files for various SCEC dynamic rupture benchmarks here:
http://geodynamics.org/svn/cig/short/3D/PyLith/benchmarks/trunk/dynamic/scecdynrup/

Detailed description about each benchmark can be found here:
http://scecdata.usc.edu/cvws/benchmark_descriptions.html

--Surendra
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