[CIG-LONG] defining the model bounding geometry

[Walter Landry]

Matty Mookerjee <matty.mookerjee at sonoma.edu> wrote:
> Walter and list:
> 
> Does anyone have any advices for how to constrain the boundary of
> the model as a polygon.  Because the boundary of the model is the
> only place where one can control boundary friction, I want to use
> the boundary of the model as my fault asperity with an irregular
> geometry as opposed to building the asperity within the model space.
> The terms minX, minY, minZ, maxX, maxY, and maxZ obviously only
> define a box-shaped model space.

Use a SurfaceAdaptor to set the boundary of the model. You can use an
equation or input from a file.  Then fix the velocity of the boundary
to zero.  Section 5.10 has an example of how to do that.

> Also, I am not sure that I have adequately "turned on" friction
> along my boundary.  As I vary the terms BoundaryFriction,
> BoundaryFrictionCohesion, etc. by several orders of magnitude, I see
> not effect in my model.

Can you send your input file?

Cheers,
Walter Landry