Provide coupled, higher-fidelity, usable modeling and simulation capabilities needed to address light water reactor operational and safety performance-defining phenomena.
To complete its mission, CASL will:

  • Develop, integrate, and couple a suite of robust, verified, validated, and usable simulation tools within a common, multi-physics virtual environment for reactor applications (VERA) designed to provide a number of problem- and user-dependent products;
  • Develop and evolve within VERA physics-based materials models of the fuel system, reactor vessel and internals, improved constitutive relations of coolant and corrosion chemistry, and scalable, robust, modern methodologies for 3D full-core thermal hydraulics and pin-resolved radiation transport;
  • Develop and apply an overall methodology for VERA verification and validation, calibration through data assimilation, sensitivity analysis, discretization error analysis and control, uncertainty quantification, and predictive maturity assessment;
  • Demonstrate the applicability of VERA products to address essential industrial issues for achieving power uprates, lifetime extension, and higher fuel burn-up while ensuring that fuel performance and safety limits are met;
  • Develop and apply human-machine interfaces that are structured to be reactor-aware to facilitate ease-of-usage;
  • Develop, as necessary, distinct simulation capabilities, of variable fidelity, appropriate for execution on different classes of computer platforms, ranging from engineering clusters (<100 TF) to leadership-class high performance computers (>1 PF);
  • Benchmark VERA products with operational data from commercial reactors and provide for early deployment to industry through Test Stands and Pilot Projects;
  • Engage regulatory authorities to enable future application of the results;
  • Employ a Science Council (SC) for independent assessment of the quality and relevance of the executed scientific work and an Industry Council (IC) for review of plans, specs, and products and advice on gaps, critical needs, and incremental technology deployment; and
  • Track program performance using three sets of performance metrics that assess technical performance, management performance, and program innovation and agility.