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    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
    Publications and Reports
    Long-Term Management and Actions for a Severe Accident in a Nuclear Power Plant

    As the Fukushima Daiichi nuclear power plant (NPP) accident illustrates, many challenges have to be faced in maintaining safety over the long term in a damaged NPP following a severe accident. These ...

    English Three Mile Island Fukushima WGAMA Chernobyl Accident analysis and management Nuclear safety research CSNI Accident management …
    Published date: 29 April 2021
    NEA Document
    Computational Fluid Dynamics for Nuclear Reactor Safety-5 (CFD4NRS-5): Workshop Proceedings
    NEA/CSNI/R(2016)1
    This present workshop was held in Zurich, Switzerland on 9-11 September 2014. It is the 5th workshop on Computational Fluid Dynamics for Nuclear Reactor Safety (CFD4NRS-5), in the biennial series of...
    English CFD WGAMA CSNI Proceedings …
    Published date: 1 January 2016
    NEA Document
    Post-BEMUSE Reflood Model Input Uncertainty Methods (PREMIUM) Benchmark Phase II: Identification of Influential Parameters
    NEA/CSNI/R(2014)14

    The objective of the Post-BEMUSE Reflood Model Input Uncertainty Methods (PREMIUM) Benchmark is to progress on the issue of the quantification of the uncertainty of the physical models in system ther...

    English WGAMA Nuclear safety research CSNI Benchmark …
    Published date: 23 February 2015
    NEA Document
    Best Practice Guidelines for the Use of CFD in Nuclear Reactor Safety Applications – Revision
    NEA/CSNI/R(2014)11

    In May 2002, an exploratory meeting of experts to define an action plan on the application of Computational Fluid Dynamics (CFD) Codes to nuclear reactor safety problems was held in Aix-en-Provence, ...

    English CFD WGAMA Nuclear safety research CSNI Best practices …
    Published date: 12 February 2015
    NEA Document
    Assessment of CFD Codes for Nuclear Reactor Safety Problems – Revision 2
    NEA/CSNI/R(2014)12

    Following recommendations made at an exploratory meeting of experts to define an action plan on the application of Computational Fluid Dynamics (CFD) codes to nuclear reactor safety (NRS) problems, h...

    English CFD WGAMA Nuclear safety research CSNI …
    Published date: 16 January 2015
    NEA Document
    Extension of CFD Codes Application to Two-Phase Flow Safety Problems – Phase 3
    NEA/CSNI/R(2014)13

    This document is an extension of the NEA/SEN/SIN/AMA(2006)2 report produced by the Writing Group 3 on the extension of CFD to two-phase flow safety problems, which was formed following the recommen...

    English CFD WGAMA Nuclear safety research CSNI …
    Published date: 1 November 2014
    NEA Document
    CFD for Nuclear Reactor Safety Applications (CFD4NRS-4): Workshop Proceedings
    NEA/CSNI/R(2014)4

    Following the CFD4NRS workshops held in Garching, Germany (September 2006), Grenoble, France (September 2008) and Washington D.C., USA (September 2010), this workshop, held in Daejeon, Korea on 10-12...

    English Modelling and simulation CFD Nuclear safety research CSNI Proceedings …
    Published date: 14 February 2014
    NEA Document
    WGAMA CFD Task Group Meeting - 27 April 2011
    NEA/SEN/SIN/AMA/A(2011)3
    English WGAMA Accident analysis and management CSNI
    Published date: 11 April 2011
    NEA Document
    Extension of CFD Codes Application to Two-Phase Flow Safety Problems: Phase 2
    NEA/CSNI/R(2010)2

    This document is an extension of the NEA/SEN/SIN/AMA(2006)2 report produced by Writing Group 3 on the extension of computational fluid dynamics (CFD) to two-phase flow safety problems. Writing Group ...

    English CFD Nuclear safety research CSNI
    Published date: 21 July 2010
    NEA Document
    Assessment of Computational Fluid Dynamics (CFD) Codes for Nuclear Reactor Safety Problems
    NEA/CSNI/R(2007)13

    Following recommendations made at an “Exploratory Meeting of Experts to Define an Action Plan on the Application of Computational Fluid Dynamics (CFD) Codes to Nuclear Reactor Safety (NRS) Problems”,...

    English CFD WGAMA Nuclear safety research CSNI …
    Published date: 28 January 2008
    NEA Document
    International Standard Problem: ISP-47 on Containment Thermal Hydraulics – Final Report
    NEA/CSNI/R(2007)10

    The main objective of ISP-47 was to assess the capabilities of lumped parameter (LP) and computational fluid dynamics (CFD) codes in the area of containment thermal-hydraulics. Following the recommen...

    English CFD Nuclear safety research CSNI
    Published date: 11 September 2007
    NEA Document
    State of the Art Report on Iodine Chemistry
    NEA/CSNI/R(2007)1

    The OECD Nuclear Energy Agency has long recognised the importance of iodine behaviour and has organised workshops and international standard problems on the subject. In the meantime, experimental and...

    English WGAMA State-of-the-art report Nuclear safety research CSNI …
    Published date: 23 February 2007
    NEA Document
    Workshop on Benchmarking of CFD Codes for Application to Nuclear Reactor Safety (CFD4NRS)
    NEA/CSNI/R(2007)3

    Computational fluid dynamics (CFD) is to an increasing extent being adopted in nuclear reactor safety analyses as a tool that enables specific safety relevant phenomena occurring in the reactor coola...

    English CFD WGAMA Nuclear safety research CSNI Proceedings …
    Published date: 1 January 2007
    NEA Document
    BEMUSE Phase II Report: Re-Analysis of the ISP-13 Exercise, Post Test Analysis of the LOFT L2-5 Test Calculation
    NEA/CSNI/R(2006)2

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) Programme, promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the S...

    English WGAMA Nuclear safety research CSNI
    Published date: 19 June 2006
    NEA Document
    Progress Made in the Last Fifteen Years Through Analyses of the TMI-2 Accident Performed in Member Countries
    NEA/CSNI/R(2005)1

    The TMI-2 accident keeps providing unique full scale data giving opportunities to check the ability of the codes to model overall plant behaviour and to perform many sensitivity and uncertainty calcu...

    English Three Mile Island WGAMA Accident analysis and management Fuel cycle facility safety Nuclear safety research Safety assessment CSNI Safety Safety of components and structures Risk assessment Probabilistic risk assessment …
    Published date: 10 March 2005
    NEA Document
    Debris Impact on Emergency Coolant Recirculation: Summary and Conclusions
    NEA/CSNI/R(2004)2

    The workshop on Debris Impact on Emergency Coolant Recirculation was held in Albuquerque, the United States on 25-27 February 2004. It was organised under the auspices of the NEA Committee on the Saf...

    English WGOE WGAMA Nuclear safety research CSNI …
    Published date: 24 November 2004
    NEA Document
    AECL International Standard Problem ISP-41: Follow-up Exercise (Phase II): Iodine Code Comparison Exercise Against CAIMAN and RTF Experiments
    NEA/CSNI/R(2004)16

    The main objective of ISP exercises is to increase confidence in the validity and accuracy of the tools that are used in assessing the safety of nuclear installations. The secondary objective is to e...

    English Nuclear safety research CSNI Codes and programs
    Published date: 1 November 2004
    NEA Document
    Current Severe Accident Research Facilities and Projects: Revised October 2003
    NEA/CSNI/R(2004)6

    The “Current Severe Accident Research Facilities and Projects” list was compiled by the Committee on the Safety of Nuclear Installations Working (CSNI) Group on the Analysis and Management of Acciden...

    English WGAMA Nuclear safety research CSNI
    Published date: 9 March 2004
    NEA Document
    ISP-42 (PANDA tests): "ISP-42 - Comparison and Interpretation Report - Final" Volume I (Blind Exercise)
    NEA/CSNI/R(2003)6

    Supporting files can be downloaded from www.oecd-nea.org/nsd/docs/2003/isp-42/

    English CSNI
    Published date: 5 February 2003
    NEA Document
    ISP-45 (QUENCH 06 Test) - Final Comparison and Interpretation Report.
    NEA/CSNI/R(2002)23
    English CSNI
    Published date: 18 November 2002
    NEA Document
    Proceedings of an exploratory meeting of experts to define an action plan on the application of computational fluid dynamics (CFD) to nuclear reactor safety problems - Aix en provence - 15-16 May 2002
    NEA/CSNI/R(2002)16
    English CSNI Proceedings
    Published date: 27 June 2002
    NEA Document
    Implementation of Severe Accident Management Measures - Summary and Conclusions: OECD/CSNI Workshop, 10-13 September 2001, Villigen, Switzerland
    NEA/CSNI/R(2002)12
    English CSNI
    Published date: 25 June 2002
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