[aspect-devel] inconsistency in use of x, y, and z

Magali Billen mibillen at ucdavis.edu
Tue Mar 10 11:26:12 PDT 2015

On Mar 10, 2015, at 11:19 AM, Timo Heister <heister at clemson.edu> wrote:

>> In 2D the dimension of the box are set with X extent and Y extent. However, for the initial temperature
>> function, the variables that need to be used are x and z.
> No, the variables used in the function expression can be anything you
> want and are set in "Variable names". You can call them a and b for
> example.

Okay - so maybe in for this cookbook it would be good to point that out, or make it consistent for the cookbook.

>> This is also an issue with the boundary indicators.  To easily move from a 2D to a 3D model, the boundary
>> indicators for left, right, bottom, top should remain 0-3 and adding the third dimension should add the boundary indicators 4 and 5 for the front and back.  I know you can get around this by using the words "front",  "back", etc...
>> but this seems like a weird way of counting things
> What is your argument for not using left/right/top/bottom/front/back?

no argument against it, I just switched my input files to use these names instead of the numbers.

> I agree that it annoying, that the current definitions do not allow
> you to switch between 2d and 3d with a single line change. There is
> certainly something we can try to improve.

Yes, I guess this is the real issue. 

> -- 
> Timo Heister
> http://www.math.clemson.edu/~heister/
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