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Activity
Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS)

The Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) studies the reactor physics, thermal hydraulics, radiation transport and shielding, and multiphysics aspects ...

Multi-physics simulations Fuel studies Light water reactors Artificial Intelligence WPRS Advanced reactors Reactor physics Multiphysics Reactor physics Machine Learning Thermal hydraulics Uncertainty quantification Pressurised heavy water reactors …
Published date: 5 May 2025
Activity
Deterministic Time-Dependent Neutron Transport Benchmark without Spatial Homogenisation (C5G7-TD)

To ensure reliable modelling of neutron physics within a state-of-the-art transient code, the neutron kinetics part of such a code should be based on the full-scale calculation of the space-time neu...

Transport Verification and validation Verification Radiation Uncertainty quantification Uncertainty analysis Benchmark Reactor physics …
Published date: 7 April 2025
Activity
Benchmark Activities on Reactor Single- and Multi-Physics of the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS)

The Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) and its expert groups co-ordinate benchmark activities on Reactor Single- and Multi-Physics. The benchmark ac...

Multi-physics simulations Boiling water reactors Nuclear science Light water reactors Artificial Intelligence Liquid metal reactors WPRS Advanced reactors Reactor physics Machine Learning Verification and validation Uncertainty quantification Benchmark Pressurised water reactors …
Published date: 11 December 2024
Activity
Benchmark for Uncertainty Analysis in Best-Estimate Modelling for Design, Operation and Safety Analysis of Light Water Reactors (LWR-UAM)

The goal of the Benchmark for Uncertainty Analysis in Best-Estimate Modelling for Design, Operation and Safety Analysis of Light Water Reactors (LWR-UAM) is to determine the uncertainty in light wate...

Modelling and simulation Reactor physics Light water reactors Verification and validation Validation Uncertainty quantification Uncertainty analysis Benchmark Reactor physics Pressurised water reactors …
Published date: 25 April 2023
Activity
Boiling Water Reactor Turbine Trip (BWRTT) Benchmark

The Boiling Water Reactor Turbine Trip (BWRTT) Benchmark was established to challenge the coupled system thermal-hydraulic/neutron kinetics codes against a Peach-Bottom-2 (a GE-designed BWR/4) turbin...

Thermal hydraulics Verification and validation Verification Uncertainty quantification Uncertainty analysis Reactor physics …
Published date: 19 July 2022
NEA Document
Evaluation of Uncertainties in Relation to Severe Accidents and Level-2 Probabilistic Safety Analysis: Workshop Proceedings
NEA/CSNI/R(2007)2

Uncertainty in relation to several severe accident phenomena plays a major role in probabilistic safety analyses involving beyond-design-basis accident scenarios for nuclear power plants. The technic...

English Risk assessment WGRISK Accident analysis and management Uncertainty quantification Nuclear safety research Uncertainty analysis CSNI …
Published date: 26 January 2022
Activity
Expert Group on Uncertainty Analysis in Modelling (EGUAM)

The expert group provided advice to the Working Party on Scientific Issues of Reactor Systems (WPRS) on the scientific development needs (data and methods, validation experiments, scenario studies) o...

EGUAM Boiling water reactors Nuclear science Light water reactors WPRS Reactor physics Modelling and simulation Reactor physics Uncertainty quantification Uncertainty analysis Benchmark Pressurised water reactors …
Published date: 27 October 2021
Activity
IRPhE Handbook 2019 Edition - Contents

IRPhE Handbook 2019 Edition - Contents

Verification and validation Verification Uncertainty quantification Uncertainty analysis Reactor physics …
Published date: 30 September 2020
NEA Document
NEA Benchmark Exercise: Computational Fluid Dynamic Prediction and Uncertainty Quantification of a GEMIX Mixing Layer Test
NEA/CSNI/R(2017)19
The main objectives of the current activity are the promotion, test and evaluation of various methodologies for uncertainty quantification in computational fluid dynamics (UQCFD) for nuclear reactor...
English Uncertainty quantification Nuclear safety research CSNI
Published date: 6 February 2019