The RAGE radiation-hydrodynamic code
We describe RAGE, the ``Radiation Adaptive Grid Eulerian'' radiation-hydrodynamics code, including its data structures, its parallelization strategy and performance, its hydrodynamic algorithm(s), its (gray) radiation diffusion algorithm, and some of the considerable amount of verification...
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| creator | Gittings, Michael Weaver, Robert Clover, Michael Betlach, Thomas Byrne, Nelson Coker, Robert Dendy, Edward Hueckstaedt, Robert New, Kim Oakes, W Rob Ranta, Dale Ryan, Stefan |
| description | We describe RAGE, the ``Radiation Adaptive Grid Eulerian'' radiation-hydrodynamics code, including its data structures, its parallelization strategy and performance, its hydrodynamic algorithm(s), its (gray) radiation diffusion algorithm, and some of the considerable amount of verification and validation efforts. The hydrodynamics is a basic Godunov solver, to which we have made significant improvements to increase the advection algorithm's robustness and to converge stiffnesses in the equation of state. Similarly, the radiation transport is a basic gray diffusion, but our treatment of the radiation-material coupling, wherein we converge nonlinearities in a novel manner to allow larger timesteps and more robust behavior, can be applied to any multi-group transport algorithm. |
| doi_str_mv | 10.48550/arxiv.0804.1394 |
| format | Article |
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| subjects | Algorithms Convergence Data structures Equations of state Fluid dynamics Fluid flow Fluid mechanics Hydrodynamics Parallel processing Physics - Computational Physics Physics - Plasma Physics Radiation transport |
| title | The RAGE radiation-hydrodynamic code |
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