[FLASH-USERS] 2D multigrid self-gravity in FLASH2.2/2.3

Hi,
 I would like to simulate a thin plane of matter (a galactic disk)
with self-gravity. It seems that no matter what I do in a 2D problem
the multigrid module returns a gravitational potential that treats
the problem like a 2d slice of a 3D distribution of matter. For a
simple test (analogous to dust_coll) the 2d result is exactly the
analytical solution for a 3D distribution with the same radial
density dependence.

My questions: Can a true thin plane be treated with the multigrid
poisson solver? What are the configuration options to do it. If not,
how can this be done? I am using FLASH2.2, will switching to 2.3 fix
this problem (I plan to upgrade anyway but wanted to get this worked
out first).

Thanks,
Jason
Received on Mon Jun 30 19:05:03 2003