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[ascl:1712.006] Nyx: Adaptive mesh, massively-parallel, cosmological simulation code

Nyx code solves equations of compressible hydrodynamics on an adaptive grid hierarchy coupled with an N-body treatment of dark matter. The gas dynamics in Nyx use a finite volume methodology on an adaptive set of 3-D Eulerian grids; dark matter is represented as discrete particles moving under the influence of gravity. Particles are evolved via a particle-mesh method, using Cloud-in-Cell deposition/interpolation scheme. Both baryonic and dark matter contribute to the gravitational field. In addition, Nyx includes physics for accurately modeling the intergalactic medium; in optically thin limits and assuming ionization equilibrium, the code calculates heating and cooling processes of the primordial-composition gas in an ionizing ultraviolet background radiation field.

Code site:
https://amrex-astro.github.io/Nyx/ https://github.com/AMReX-Astro/Nyx
Described in:
https://ui.adsabs.harvard.edu/abs/2013ApJ...765...39A
Bibcode:
2017ascl.soft12006A

Views: 3759

ascl:1712.006
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