[Mesa-users] change mesh/number of zones

[amber lauer]

Great, thanks Bill. I think that either the first or second solution will
work well.

On Mon, Mar 4, 2019 at 4:32 PM Bill Paxton <paxton at kitp.ucsb.edu> wrote:

> Hi Amber,
>
> what happens if you change mesh_delta_factor and then run for a few steps
> with a small max timestep to let the standard evolution code revise the
> mesh?   that’s approximately what you would get with a “relax”.  next step
> up in complexity would be to gradually change mesh_delta_factor
> step-by-step from run_star_extras; that’s even more like relax.   then the
> ultimate would be for you to use the relax machinery from run_star_extras
> by calling the routine star_evolve_to_check_point in star_lib.  it is
> exactly the same algorithmic structure as the various built in relax
> operations.
>
> cheers,
> bill
>
>
>
> On Mar 4, 2019, at 1:24 PM, amber lauer via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
>
> If I'm running a model that starts from a saved model with a number of
> zones, say "X", what's the best way to change the number of zones to
> something else, say aX, or a+X, or even just a constant number? The ideal
> solution would turn the rest of the physics off, similar to a relaxation
> routine. I checked star_job for the various relaxation routines and also
> the mesh adjustment section in controls but nothing was immediately obvious
> to me as strictly changing nz. Thanks.
>
> --
> Amber Lauer
> Postdoctoral Researcher
> Triangle Universities Nuclear Lab
> Duke University
> amber.lauer at tunl.duke.edu <amber.lauer at duke.edu>
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
>

-- 
Amber Lauer
Postdoctoral Researcher
Triangle Universities Nuclear Lab
Duke University
amber.lauer at tunl.duke.edu <amber.lauer at duke.edu>
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