An Adaptive Multigrid Solver for High-Resolution Cosmological Simulations

Details An Adaptive Multigrid Solver for High-Resolution Cosmological Simulations An Adaptive Multigrid Solver for High-Resolution Cosmological Simulations

1994-12-13

arxiv.org/abs/astro-ph/9412043v1

Mon.Not.Roy.Astron.Soc. 274 (1995) 287-299

Astronomy and Astrophysics

Astrophysics

plain tex, 16 pages, 8 figures, submitted to Monthly Notices

Scientific paper

We have developed an adaptive multigrid code for solving the Poisson equation in gravitational simulations. Finer rectangular subgrids are adaptively created in locations where the density exceeds a local level-dependent threshold. We describe the code, test it in cosmological simulations, and apply it to the study of the birth and evolution of a typical pancake singularity. The initial conditions for the pancake are generated on the basis of the theory of Lagrangian singularities; we follow its evolution for a few collapse times, finding a rich substructure in the final object. We achieve a spatial resolution of 1/1024 of the size of the overall computational cube in the central parts of the pancake, with computing time comparable to that of the FFT-solvers.

Affiliated with

Also associated with

No associations

Rating

An Adaptive Multigrid Solver for High-Resolution Cosmological Simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An Adaptive Multigrid Solver for High-Resolution Cosmological Simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Adaptive Multigrid Solver for High-Resolution Cosmological Simulations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-556173