Re: [FLASH-USERS] 2D gravity

Dan,

thanks for info. None of the geometries mentioned in your e-mail are
appropriate for my problem. Ideally I would need 2D cylindrical (r,phi) or
2D cartesian. Is it difficult to upgrade FLASH to consider either of these
two cases ?

Mateusz

On Wed, 18 Aug 2004, Dan Sheeler wrote:

> The only new gravity support (for the multigrid solver) in the next
> release will be for 2d cylindrical axisymmetric isolated boundary
> conditions. Also, 2d spherical will be newly supported in the multipole
> solver.
>
> Is it 2d cartesian isolated boundary conditions that you'd like?
>
> Dan
>
> On Wed, 18 Aug 2004, Mateusz Ruszkowski wrote:
>
> >
> > Hi All,
> >
> > is there any plan to include 2D gravity in the next release of FLASH ?
> > Current version of gravity uses standard Green's function, whereas
> > intrinsically 2D problems have G \propto ln(r). The problem cannot be
> > easily solved just by modifying Green's function as FFT solvers work only
> > for the case of one top level block.
> >
> > thanks,
> > Mateusz
> >
>
> --
> --
> Dan Sheeler
> ASCI Flash Center
> sheeler@flash.uchicago.edu
> (773) 834-3236
>
Received on Wed Aug 18 17:02:49 2004