Conference Proceedings Paper
OECD/NEA PSBT Benchmark: Simulation of the Steady-State Sub-Channel Test-Case with NEPTUNE CFD
NURETH-14 - 2011 September 25-30
Cyril Baudry (EDF)
Mathieu Guingo (EDF)
Alexandre Douce (EDF)
Jérôme Laviéville (EDF)
Stéphane Mimouni (EDF R&D)
Marc Boucker (EDF)
In this paper, we present numerical results obtained with the multifield CFD code NEPTUNE_CFD in the framework of the OECD/NRC PWR Subchannel and Bundle Tests (PSBT) international benchmark, focusing on the simulation of five selected runs of the steady-state subchannel exercise. The propagation of the estimated experimental uncertainties on the simulations results is investigated, as well as the mesh sensitivity of the axial evolution of the mean void-fraction by using three grid levels. Last, calculation results using a devoted model for the bubble-size distribution are presented.
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