PLUTO: a Numerical Code for Computational Astrophysics
摘要：
We present a new numerical code, PLUTO, for the solution of hypersonic flows in 1, 2 and 3 spatial dimensions and different systems of coordinates. The code provides a multi-physics, multi-algorithm modular environment particularly oriented towards the treatment of astrophysical flows in presence of discontinuities. Different hydrodynamic modules and algorithms may be independently selected to properly describe Newtonian, relativistic, MHD or relativistic MHD fluids. The modular structure exploits a general framework for integrating a system of conservation laws, built on modern Godunov-type shock-capturing schemes. Although a plethora of numerical methods has been successfully developed over the past two decades, the vast majority shares a common discretization recipe, involving three general steps: a piecewise polynomial reconstruction followed by the solution of Riemann problems at zone interfaces and a final evolution stage. We have checked and validated the code against several benchmarks available in literature. Test problems in 1, 2 and 3 dimensions are discussed. Comment: To be published in ApJ Supplement; corrected the size of Fig. 7
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关键词：
Humans Facial Nerve Vestibulocochlear Nerve Neuroma, Acoustic Adult Aged Aged, 80 and over Methods Middle Aged Cochlear Nerve
DOI：
10.1086/513316
被引量：
年份：
2007
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