[CIG-SHORT] Fault junctions

[Brad Aagaard]

Ali,

The current limitation in PyLith is that faults cannot share 
nodes/vertices. This means that if you have a main fault and a fault 
branch, the branch must end 1 cell away from the main fault. 
Additionally, this node should have zero slip to avoid effects 
associated with slip at the end of the fault.

In dynamic rupture benchmark tests, we have found relatively small 
differences between this implementation and other codes that are able to 
allow slip on the node 1 cell away. By selecting the "main" fault as the 
one that has the more continuous distribution of slip you can minimize 
errors associated with not having an ideal intersection.

Brad


On 11/26/11 12:54 PM, ali Ozbakir wrote:
> Dear All,
>
> I am planning to start using PyLith. Prior to migrating to the PyLith, I
> was wondering
> if PyLith supports fault junctions. Does any special treatment is
> needed, or just a correct
> mesh topology suffices to proceed with computations?
>
> Regards,
> Ali
>
>
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