Conference Proceedings Paper
An Overview of Past and Present CFD Activities within the Framework of WGAMA
NURETH-14 - 2011 September 25-30
Brian L. Smith (Paul Scherrer Institut)
John H. Mahaffy (U.S. Nuclear Regulatory Commission)
Dominique Bestion (Commissariat à l’Énergie Atomique)
Ghani Zigh (U.S. Nuclear Regulatory Commission)
In 2003, three Writing Groups (WG1, WG2, WG3) were established within the Working Group on Analysis and Management of Accidents (WGAMA) of the OECD Nuclear Energy Agency. The groups had the responsibility of summarising the state-of-the-art in the application of Computational Fluid Dynamics (CFD) to items of concern in nuclear reactor safety. The Best Practice Guidelines (BPGs) drawn up by the WG1 group defined the procedures which need to be followed to produce trustworthy results from a CFD simulation. The WG2 group itemised the assessment base which underpins single-phase CFD as an established technology. The WG3 group focused on the challenges that still need to be faced before two-phase CFD may be regarded as a mature science. The background to the activity, method of approach, documented evidence, status and current activities are described under appropriate section headings in this paper.
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