[Mesa-users] Trouble w. convective stability criteria

[Rob Farmer]

Hi,
Can you try setting your overshoot as:

    overshoot_scheme(1) = 'exponential'
    overshoot_zone_type(1) = 'any'
    overshoot_zone_loc(1) = 'any'
    overshoot_bdy_loc(1) = 'any'
    overshoot_f(1) = 0.030
    overshoot_f0(1) = 0.008

i.e using an array index of (1) instead of (:)

Rob


On Fri, 9 Apr 2021 at 10:08, Peter Juelsgaard via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> 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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> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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