A perturbation-based acceleration for Monte Carlo – Thermal Hydraulics Picard iterations. Part I: Theory and application to extruded BWR unit-cell.

Annals of Nuclear Energy（2022）

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摘要

•Acceleration method for Monte Carlo – Thermal Hydraulics coupled calculations.•Picard iterations are accelerated using a perturbation-based methodology.•Transfer functions predict macroscopic cross sections’ change with thermal-hydraulics.•Application to extruded unit-cell of boiling water reactor.•Speed-up factor up to 12.4, compared to the standard Picard iteration.

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关键词

Multiphysics,Monte Carlo,Thermal Hydraulics,Transfer Functions,Cross sections

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