[aspect-devel] Internal heating in aspect (Ludovic Jeanniot)

[Wolfgang Bangerth]

On 08/28/2018 08:55 PM, Wolfgang Bangerth wrote:
> 
> * It surprises me that "too much diffusion" should be the problem. That's
>    because the depth-dependent temperature profile is already pretty much
>    linear, and if there was too much diffusion, then it would be even more
>    linear than the analytic solution. But your data shows that the temperature
>    is *below* the convex analytic solution. I find it difficult to think
>    in a sphere, so I may be completely wrong about this, but at least I
>    haven't quite wrapped my head around this yet.

Ignore this point: too much diffusion leads to more diffusion of heat from the 
CMB into the mid-mantle, and more diffusion of heat from the mid-mantle to the 
surface. But because the surface are is so much larger than the CMB area, the 
latter former wins and lowers the temperature in the interior.

Best
  W.

-- 
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Wolfgang Bangerth          email:                 bangerth at colostate.edu
                            www: http://www.math.colostate.edu/~bangerth/