[FLASH-USERS] min. unk(DENS_VAR)

Mark Richardson mark.richardson.work at gmail.com
Mon Jul 2 13:54:34 EDT 2018


Dear Slah,

  there is a default parameter that sets the minimum density (and e and p,
etc) that can happen. The default value, I believe, is 1e-10. It's called
sml_rho (there's also small_e, small_p I believe). You could set this to a
lower value in your flash.par file.

Cheers,
  -Mark

On 2 July 2018 at 13:31, Slah Abdellaoui <slah.abdella at gmail.com> wrote:

> Dear All
> I am running a problem, where the initial density is proportional to
> 1/r^2, whenever I change the parameter the density profile reaches the of
> 1e-10 (figure dens.png) and it doesn't go further, as it suppose to vary as
> a function of 1/ r^2. I don't know what causing that. I am using 1d
> spherical coordinate problem with PPM hydro solver and including the
> gravity point mass.
> I have set "convertToConsvdInMeshInterp =.True." and I saw the output in
> attached log file.
> Some of the configuration I get non convergence in Riemann subroutine.
>
> I look forward to receiving your response.
> Best regards,
> Slah​
>  log
> <https://drive.google.com/file/d/1mMbxAvAXxlFNEzMD8CwmuXPe37FmHah-/view?usp=drive_web>
>>



-- 

Mark Richardson
MAT Postdoctoral Fellow
Department of Astrophysics
American Museum of Natural History
Mark.Richardson.Work at gmail.com
My Website <https://sites.google.com/site/marklarichardson/>
212 496 3432
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