RAMSES: an AMR code of general interest for astrophysics
نویسنده
چکیده
The RAMSES code, developed under the responsibility of R. Teyssier, is a development platform for solving mainly hyperbolic equation systems in an adaptive mesh refinement structure (AMR). For the time being, the basic mesh is Cartesian. We have planned to extend it to cylindrical and spherical meshing in 2004. The modules that have been developed so far are being massively used in cosmology (production). The Vlasov-Poisson equation is processed thanks to a particle-grid type code. Gravitational potential is calculated by solving the Poisson equation on the AMR grid. As for the dynamics of gas, this is described by a Godunov order 2 diagram, non alternating in direction (Teyssier 2002 [1]).
منابع مشابه
Adaptive Mesh Refinement in Computational Astrophysics – Methods and Applications
The advent of robust, reliable and accurate higher order Godunov schemes for many of the systems of equations of interest in computational astrophysics has made it important to understand how to solve them in multi-scale fashion. This is so because the physics associated with astrophysical phenomena evolves in multi-scale fashion and we wish to arrive at a multi-scale simulational capability to...
متن کاملCosmological Hydrodynamics with Adaptive Mesh Refinement A New High Resolution Code Called RAMSES
A new N-body and hydrodynamical code, called RAMSES, is presented. It has been designed to study structure formation in the universe with high spatial resolution. The code is based on Adaptive Mesh Refinement (AMR) technique, with a tree based data structure allowing recursive grid refinements on a cell-by-cell basis. The N-body solver is very similar to the one developed for the ART code (Krav...
متن کاملWork supported in part by US Department of Energy contract DE-AC02-76SF00515. YT: A MULTI-CODE ANALYSIS TOOLKIT FOR ASTROPHYSICAL SIMULATION DATA
The analysis of complex multiphysics astrophysical simulations presents a unique and rapidly growing set of challenges: reproducibility, parallelization, and vast increases in data size and complexity chief among them. In order to meet these challenges, and in order to open up new avenues for collaboration between users of multiple simulation platforms, we present yt, an open source, communityd...
متن کاملVisualization Tools for Adaptive Mesh Refinement Data
Adaptive Mesh Refinement (AMR) is a highly effective method for simulations that span a large range of spatiotemporal scales, such as astrophysical simulations that must accomodate ranges from interstellar to sub-planetary. Most mainstream visualization tools still lack support for AMR as a first class data type and AMR code teams use custom built applications for AMR visualization. The Departm...
متن کاملVisualization of Scalar Adaptive Mesh Refinement Data
Adaptive Mesh Refinement (AMR) is a highly effective computation method for simulations that span a large range of spatiotemporal scales, such as astrophysical simulations, which must accommodate ranges from interstellar to sub-planetary. Most mainstream visualization tools still lack support for AMR grids as a first class data type and AMR code teams use custom built applications for AMR visua...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004