[FLASH-USERS] Conserving mesh with fixed refined regions

[Ryan Farber]

Hi C.,

You can effectively turn off AMR via setting nrefs in flash.par to a large
number (larger than the number of steps you expect your simulation to take).

Best,
--------
Ryan


On Fri, Jun 26, 2020 at 1:10 PM María Fernanda Clever Uribe <
clever_fisica at ciencias.unam.mx> wrote:

> Hi everyone;
>
> I am trying to run a simulation with certain regions with a fixed AMR mesh
> configuration (a set of concentric rectangles around the origin) using the
> Flash version 4.3 I want to use rectangular zones in my domain (I am
> working with cartesian coordinates). The smallest rectangle maintains the
> maximum nlev_max, the subsequent rectangle with nlev_max - 1 mesh and so
> forth.
>
> I checked some emails and sections in the manual where the subroutine
> Grid_markRefineDerefine.f90 is applied to define zones where the highest
> refinement level is required. Using this subroutine am able to set the
> concentric rectangles for t=0, however for t>0 the initial mesh
> configuration is not conserved anymore and many zones in the domain change
> to a high refinement (basically Flash uses the AMR configuration which it
> would use by not using Grid_markRefineDerefine.f90).
>
> I want to know if it is possible to force the mesh to maintain the initial
> configuration for the next timesteps.
>
> Thanks in advance!
>
>
> C.
>
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