NEA Mandates and Structures


Expert Group on Multi-scale Modelling of Fuels

Chair(s): Michel FREYSS, France
Secretary:  Davide COSTA
(davide.costa@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 2009
End of mandate:30 June 2019

Mandate (Document reference):

  • Agreed at the 20th meeting of the Nuclear Science Committee in June 2009 [NEA/SEN/NSC(2009)3]
  • Summary record of the 6th Meeting of the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems [NEA/SEN/NSC/WPMM(2011)2]
  • Extended in the Summary record of the 8th Meeting of the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems [NEA/SEN/NSC/WPMM(2012)2]
  • Extended as a part of WPMM activities at the 23rd meeting of the Nuclear Science Committee in June 2012 [NEA/SEN/NSC(2012)3]
  • Extended as part of WPMM activities at the 24th meeting of the Nuclear Science Committee in June 2013 [NEA/SEN/NSC(2013)2]
  • Extended as part of WPMM activities at the 25th meeting of the Nuclear Science Committee in June 2014 [NEA/SEN/NSC(2014)2]
  • Extended as part of WPMM activities at the 26th meeting of the Nuclear Science Committee in June 2015 [NEA/SEN/NSC(2015)2]
  • Extended and revised at the 13th meeting of the WPMM in May 2017 [NEA/NSC/WPMM/DOC(2017)2]
  • Mandates of the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems (WPMM) and Its Expert Groups [NEA/SEN/NSC(2018)7]

Mandate (Document extract):

Extract from document NEA/SEN/NSC(2018)7

Mandate

Framework and main objective

Under the guidance of the Nuclear Science Committee (NSC) and under the mandate of the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems (WPMM), the objective of the Expert Group on Multiscale Modelling of Fuel (M2F) is to share the development of a multi-scale modelling approach of fuels in support of current fuel optimisation programmes and innovative fuel design.

The objectives of the Expert Group on Multiscale Modelling of Fuel (EGM2F) are:

  • Assess the worldwide multi-scale modelling approaches devoted to nuclear fuels from the atomic to the macroscopic scale in order to share and promote such approaches;
  • Address all types of fuels: both current (mainly oxide fuels) and advanced fuels (such as minor actinide containing oxides fuels, carbide, nitride, metallic fuels);
  • Address key engineering issues associated with each type of fuels;
  • Assess the quality of existing links between the various scales and list the ground to be covered to strengthen multi-scale modelling approaches and engage with benchmarking and validation methodology;
  • Identify the most relevant experimental data or experimental characterisation techniques that are missing for validation of fuel multi-scale modelling;
  • Promote exchange between the actors involved at various scale;
  • Promote exchange between multi-scale modelling experts and experimentalists;
  • Providing support to the creation of task forces to address specific issues in the technical field covered by WPMM, in particular related to fuel modelling.

Associated deliverables

Deliverable 1: report from the Task Force on `Unit mechanisms of gaseous FP release”.

Deliverable 2: report from Task Force on ‘Nuclear fuel micromechanics’

Contribution to the organisation of a workshop on fuel multi-scale modelling:The EGM2F will be involved in the organisation of workshops on fuel modelling (e.g. MMSNF).