PREDICTOR-CORRECTOR QUASI-STATIC METHOD FOR TIGHTLY-COUPLED REACTOR MULTIPHYSICS TRANSIENT CALCULATIONS

Several methods have recently been developed to solve multiphysics transients using the Improved Quasi-Static method and its derivatives. In order address some perceived drawbacks of these methods, we a new for solving transient calculations Predictor-Corrector method. Our involves computing reactivity feedback parameters during each transport timestep in enable on small timescale used by point kinetics phase calculation. The advantage this approach is that solver does not need store local flux information between time steps, potentially making it more appropriate use with Monte Carlo solver. We demonstrated accuracy our simple model problem exhibits difficult behavior. Additionally, compared results against another published coupling scheme, confirming negatively affect solution.