NEA Mandates and Structures
Expert Group on Multi-physics Experimental Data, Benchmarks and Validation (EGMPEBV)
Chair(s): |
Timothy E. VALENTINE, United States
|
Secretary: |
Tatiana IVANOVA (tatiana.ivanova@oecd-nea.org)
|
Member(s): | All NEA member countries* |
| Russia (Suspended*) |
| *Russian Federation suspended pursuant to a decision of the OECD Council. |
Full participant(s): |
European Commission Under the NEA Statute
|
Observer(s)(International Organisation): |
International Atomic Energy Agency (IAEA) By agreement
|
Date of creation: | 30 June 2014 |
End of mandate: | 30 June 2020 |
Mandate (Document reference):
- Agreed at the 25th meeting of the Nuclear Science Committee [NEA/SEN/NSC(2014)2]
- Modified (election of the Chair) at the 26th meeting of the Nuclear Science Committee [NEA/SEN/NSC(2015)2]
- Extended and revised at the 27th meeting of the Nuclear Science Committee in June 2016 [NEA/SEN/NSC(2016)2]
- Discussed at the 29th meeting of the Nuclear Science Committee in June 2018 [NEA/SEN/NSC(2018)6]
- Mandate of the Expert Group on Multi-physics Experimental Data, Benchmarks and Validation (EGMPEBV) [NEA/SEN/NSC(2018)10]
Mandate (Document extract):
Extract from document [NEA/SEN/NSC(2018)10]
Introduction
The processes for performing experiments, creating benchmarks and standard problems, and using these data to validate computer codes, have been developed and implemented for several decades, with highly satisfactory results for most standard applications. Nevertheless, the global context of nuclear technology development continues to evolve and new challenges to the status quo have been appearing:
Scope
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Under the guidance of the Nuclear Science Committee (NSC), the Expert Group will deal with the activities associated with the certification of experimental data and benchmark models along with establishing the processes and procedures for using the data and benchmark models for validation of multi-physics modelling and simulation tools and data.
Objectives
The objectives of the Expert Group are the following:
- to provide member countries with the guidance and processes for certifying experimental data for its use as a benchmark or for uses as general testing of multi-physics modelling and simulation tools;
- to provide member countries with access to evaluated experimental data from the contributions of individual member countries;
- to provide member countries with guidance and recommendations for developing benchmark models from certified experimental datasets;
- to provide member countries with access to standardized benchmark models with detailed uncertainty evaluations and uncertainty methodology guidelines;
- to provide member countries with recommendations and guidelines for the range of applicability of the certified experimental datasets;
- to provide member countries with guidelines and consensus recommendations for validating multi-physics simulations; and
- to provide member countries with demonstrations of the validation recommendations for specific industrial challenge problems.
Links to other NEA working parties
The expert group will liaise closely with other relevant NEA working parties and expert groups, including those operating under the guidance of the NSC and the Committee on the Safety of Nuclear Installations (CSNI), to ensure that the respective programmes are complementary and to provide advice and support where required and undertake common work where appropriate.
Deliverables
The deliverables of the Expert Group are the following:
- a summary report of the status of experimental facilities in NEA member countries for thermal-hydraulic and fuel performance experiments needed for multi-physics validation;
- a report on the metrics and processes for certifying experimental data intended for use in validation of multi-physics M&S tools and data;
- a report on the metrics and processes for developing benchmark models from certified experimental data;
- the development of a thermal hydraulics database for use in multi-physics benchmarking activities;
- the development of a database of evaluated experimental multi-physics data;
- the development of a database of evaluated multi-physics benchmark models;
- a report on the guidelines and applicability of certified data and benchmark models for validation of M&S tools and data with application specific examples; and
- a summary report on the validation exercise for pellet cladding mechanical interaction.