[CIG-LONG] Problem regards to Gale modeling

[Walter Landry]

feng lin <rimbong at gmail.com> wrote:
> Hi all,
> 
> I have a question about Gale.
> 
> I am now modeling an extension problem.  (See picture attached). I found
> that the strain will localized from random places at the boundary between
> different material.
> So I am trying to put a small perturbation(with a low viscosity) in the
> center of lithosphere so that the perturbation will initiate strain
> localization in the center of my model.
> However the model is about 500km x 200km and I hope the perturbation body
> is as small as possible.
> So my question is: is it possible that I put a perturbation body which is
> smaller than the element of the model?
> In another word, when the size of the element in my model is about 1km x
> 1km , can I put a 100m x 100m perturbation body in the model to initiate a
> localization?
> In each element I put 40 markers.

Yes, you can.  The real limit depends on how many markers you put in
an element.  However, you may not get the desired effect unless you
make the perturbation larger.

Cheers,
Walter Landry