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 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

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  1. Collom, Gerald; Redman, Colin; Robey, Robert W.: Fast mesh-to-mesh remaps using hash algorithms (2018)
  2. Zhou, Ye: Rayleigh-Taylor and Richtmyer-Meshkov instability induced flow, turbulence, and mixing. II (2017)
  3. Sijoy, C. D.; Chaturvedi, S.: Combining node-centered parallel radiation transport and higher-order multi-material cell-centered hydrodynamics methods in three-temperature radiation hydrodynamics code TRHD (2016)
  4. Joggerst, C. C.; Nelson, Anthony; Woodward, Paul; Lovekin, Catherine; Masser, Thomas; Fryer, Chris L.; Ramaprabhu, P.; Francois, Marianne; Rockefeller, Gabriel: Cross-code comparisons of mixing during the implosion of dense cylindrical and spherical shells (2014)
  5. Haines, Brian M.; Grinstein, Fernando F.; Schwarzkopf, John D.: Reynolds-averaged Navier-Stokes initialization and benchmarking in shock-driven turbulent mixing (2013)
  6. Raghavan, Hari K.; Vadhiyar, Sathish S.: Efficient asynchronous executions of AMR computations and visualization on a GPU system (2013) ioport
  7. Grinstein, F. F.; Gowardhan, A. A.; Ristorcelli, J. R.; Wachtor, A. J.: On coarse-grained simulations of turbulent material mixing (2012)
  8. Schwarzkopf, John D.; Livescu, Daniel; Gore, Robert A.; Rauenzahn, Rick M.; Ristorcelli, J. Raymond: Application of a second-moment closure model to mixing processes involving multicomponent miscible fluids (2011)
  9. Lowrie, Robert B.; Edwards, Jarrod D.: Radiative shock solutions with grey nonequilibrium diffusion (2008)
  10. Lowrie, Robert B.; Rauenzahn, Rick M.: Radiative shock solutions in the equilibrium diffusion limit (2007)