GIZMO: Multi-method magneto-hydrodynamics+gravity code

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Ada Coda
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GIZMO: Multi-method magneto-hydrodynamics+gravity code

Post by Ada Coda » Mon Oct 13, 2014 3:49 pm

GIZMO: Multi-method magneto-hydrodynamics+gravity code

Abstract: GIZMO is a flexible, multi-method magneto-hydrodynamics+gravity code that solves the hydrodynamic equations using a variety of different methods. It introduces new Lagrangian Godunov-type methods that allow solving the fluid equations with a moving particle distribution that is automatically adaptive in resolution and avoids the advection errors, angular momentum conservation errors, and excessive diffusion problems that seriously limit the applicability of “adaptive mesh” (AMR) codes, while simultaneously avoiding the low-order errors inherent to simpler methods like smoothed-particle hydrodynamics (SPH). GIZMO also allows the use of SPH either in “traditional” form or “modern” (more accurate) forms, or use of a mesh. Self-gravity is solved quickly with a BH-Tree (optionally a hybrid PM-Tree for periodic boundaries) and on-the-fly adaptive gravitational softenings. The code is descended from P-GADGET, itself descended from GADGET-2 (ascl:0003.001), and many of the naming conventions remain (for the sake of compatibility with the large library of GADGET work and analysis software).

Credit: Hopkins, Philip F.


Bibcode: 2014ascl.soft10003H

ID: ascl:1410.003
Last edited by Ada Coda on Tue Dec 04, 2018 10:33 am, edited 1 time in total.
Reason: Updated code entry.

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