[Mesa-users] Convergence problem in ppisn/pisn models

[Debasish Dutta]

Hi,
I turned off the varcontrol_target and it seemed to have worked. Earlier,
the pulsations began but the code did not proceed till collapse. I am
attaching a movie of my earlier run.

Thanks
Debasish
ᐧ

On Mon, 13 Feb 2023 at 22:13, Debasish Dutta <debasishdutta1707 at gmail.com>
wrote:

> Hi,
> I turned off the varcontrol_target and it seemed to have worked. Earlier,
> the pulsations began but the code did not proceed till collapse. I am
> attaching a movie of my earlier run.
>
> Thanks
> Debasish
> ᐧ
>
> On Mon, 13 Feb 2023 at 15:56, Rob Farmer <robert.j.farmer37 at gmail.com>
> wrote:
>
>> Hi
>>
>> So what have you tried to fix this problem? Have you tried varying any
>> other parameters? Have you made any plots to determine what the star is
>> doing?
>>
>> Rob
>>
>>
>> On Sun, 12 Feb 2023, 18:49 Debasish Dutta via Mesa-users, <
>> mesa-users at lists.mesastar.org> wrote:
>>
>>> Hi,
>>> I am trying to run some ppisn/pisn models and reproduce some results of Farmer
>>> et. al (2019)
>>> <https://streaklinks.com/BZDi9rv6OsormvBOegYImcHx/https%3A%2F%2Fdoi.org%2F10.3847%2F1538-4357%2Fab518b>.
>>> I ran some models of 35, 40, 45,........,100 solar masses (mellaticlity
>>> 10-3). However, I am facing convergence problems in the 70 solar mass
>>> model. I get this error message
>>>
>>> stopping because of convergence problems dt < min_timestep_limit
>>> terminated evolution: convergence problems
>>> termination code: min_timestep_limit
>>>
>>> I am using mesa version r11532.
>>>
>>> Thanks and regards
>>>
>>> Debasish Dutta
>>>
>>> ᐧ
>>> _______________________________________________
>>> mesa-users at lists.mesastar.org
>>> https://lists.mesastar.org/mailman/listinfo/mesa-users
>>>
>>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.mesastar.org/pipermail/mesa-users/attachments/20230213/94457928/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: movie.mp4
Type: video/mp4
Size: 7983737 bytes
Desc: not available
URL: <https://lists.mesastar.org/pipermail/mesa-users/attachments/20230213/94457928/attachment-0001.mp4>