Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ascl.soft01008v&link_type=abstract
Astrophysics Source Code Library, record ascl:1101.008
Astronomy and Astrophysics
Astrophysics
Scientific paper
We describe the CRASH (Center for Radiative Shock Hydrodynamics) code, a block adaptive mesh code for multi-material radiation hydrodynamics. The implementation solves the radiation diffusion model with the gray or multigroup method and uses a flux limited diffusion approximation to recover the free-streaming limit. The electrons and ions are allowed to have different temperatures and we include a flux limited electron heat conduction. The radiation hydrodynamic equations are solved in the Eulerian frame by means of a conservative finite volume discretization in either one, two, or three-dimensional slab geometry or in two-dimensional cylindrical symmetry. An operator split method is used to solve these equations in three substeps: (1) solve the hydrodynamic equations with shock-capturing schemes, (2) a linear advection of the radiation in frequency-logarithm space, and (3) an implicit solve of the stiff radiation diffusion, heat conduction, and energy exchange. We present a suite of verification test problems to demonstrate the accuracy and performance of the algorithms. The CRASH code is an extension of the Block-Adaptive Tree Solarwind Roe Upwind Scheme (BATS-R-US) code with this new radiation transfer and heat conduction library and equation-of-state and multigroup opacity solvers. Both CRASH and BATS-R-US are part of the publicly available Space Weather Modeling Framework (SWMF).
Adams M. L.
der Holst Bart van
Drake Paul R.
Holloway James Paul
Morel J. E.
No associations
LandOfFree
CRASH: A Block-Adaptive-Mesh Code for Radiative Shock Hydrodynamics 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 CRASH: A Block-Adaptive-Mesh Code for Radiative Shock Hydrodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CRASH: A Block-Adaptive-Mesh Code for Radiative Shock Hydrodynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1586871