[Mesa-users] Trouble w. convective stability criteria

[Peter Juelsgaard]

Hi all.
I am having trouble with an area of a stellar model, where the Schwarzvhild
criteria fails (ie. the area should be convective), but the Diffusion
coefficient is effectively 0.
The system I work on is:
Debian 3.16.43-2 (as far as I can figure out from what the server login
tells me)
MESA ver. mesa-r12778
mesasdk-20200325

The trouble arises in 0.927 < r/R < 0.930
[image: MixingTrouble2.png]
It should be noted that the f_OV in the plot title is the effective
overshoot, which I calculate from f_effective = overshoot_f(:) -
overshoot_f0(:). Also, the area where log_D_mix = -3 is an artificial
cutoff I set, log_D_mix < -3 gets set to -3. There is an attached figure,
where I remove this cutoff, and you can see that log_D_mix=-100 in this
area. I have also included the inlist and the loaded model, for
reproducibility.


Kind regards
 - Peter Juelsgaard




I have attached the inlist files, a png. detailing
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