![]() Nuclear fuel operates in extreme environments that induce complex coupled physics phenomena occurring over distances ranging from inter-atomic spacing to meters, and timescales ranging from microseconds to years. ![]() A comprehensive review of nuclear fuel performance modeling was recently published. Fuel vendors, utilities, safety authorities, and research organizations develop or use these codes to predict the behavior and lifetime of fuel during standard operation, accidental transients, and post-irradiation storage. Such modeling is typically performed using dedicated fuel performance codes, a number of which have been developed for specific fuel types. Nuclear fuel performance modeling is used for a variety of purposes, including fuel design and optimization, experiment planning and interpretation, and operational and safety analysis. ![]() BISON includes integrated documentation for each of its capabilities, follows rigorous software quality assurance procedures, and has a growing set of rigorous verification and validation tests. Recent research in BISON includes techniques such as the extended finite element method for fuel cracking, exploration of high-burnup light water reactor fuel behavior, swelling behavior of metallic fuels, and central void formation in mixed-oxide fuel. BISON is a platform for research in nuclear fuel performance modeling while simultaneously serving as a tool for the analysis of nuclear fuel designs. ![]() ![]() Fuel forms that can be modeled include standard light water reactor fuel, emerging light water reactor fuels, tri-structural isotropic fuel particles, and metallic fuels. One of its major goals is to have a great amount of flexibility in how it is used, including in the types of fuel it can analyze, the geometry of the fuel being modeled, the modeling approach employed, and the dimensionality and size of the models. BISON is a nuclear fuel performance application built using the Multiphysics Object-Oriented Simulation Environment (MOOSE) finite element library. ![]()
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