[CIG-LONG] Isostasy in GALE

[Robert Gray]

Hey Walter,
When we apply the stressBC to model the isostatic response of a thickened
crust what is supporting the crustal root?  Is there an elastic beam
implementation in GALE that supports the thickened crust?  Is it possible
to strengthen what it is that is providing support?
Rob

On Thu, Mar 1, 2012 at 7:02 PM, Walter Landry <walter at geodynamics.org>wrote:

> Robert Gray <graywacke at gmail.com> wrote:
> > Hey Walter,
> > Thanks for the help.
> > I'm having trouble getting this input file going in Underworld.
> >  Specifically, I don't know how to declare the equation to use for
> isostasy
> > in the .xml file and not get a segmentation fault when I run the script.
> >  I've attached the .xml file that I've set up for the simulation.  In
> this
> > model, which includes temperature effects, I've set the coefficient of
> > thermal expansion to zero for both materials (which have the same
> > densities) to ensure an accurate isostatic compensation. Again, thanks
> for
> > your help.
>
> Underworld does not include an equation parser.  You have to use a
> StandardConditionFunction instead.  I think that you can use
> Velocity_SimpleShear to get the same effect.  Their StressBC may or
> may not be correct.  I fixed a few things for the latest Gale release.
>
> Cheers,
> Walter Landry
>
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