Extension of the code suite Fly to a multi-cell postprocessor for hydrodynamic plasma simulation codes

Abstract The extension of the atomic kinetics code suite F LY to a multi-cell postprocessor for hydrodynamic plasma simulation codes, called S WARM is presented. First, the collisional radiative model on which F LY is based is reviewed as far as it corresponds to the model in S WARM , then more attention is paid to the differences. Multiple cell simulations require a more complicated algorithm to solve the radiative transfer problem, taking into account geometry and point of observation. The feedback of the radiation on the atomic state populations is taken into account in a more sophisticated escape factor model. Finally, the limitations of the model are discussed.