NEPTUNE: a new software platform for advanced nuclear thermal hydraulics

A Guelfi, D Bestion, M Boucker, P Boudier… - Nuclear Science and …, 2007 - Taylor & Francis
The NEPTUNE project constitutes the thermal-hydraulic part of the long-term Electricité de
France and Commissariat à l'Energie Atomique joint research and development program for …

Massively parallel numerical simulation using up to 36,000 CPU cores of an industrial-scale polydispersed reactive pressurized fluidized bed with a mesh of one …

H Neau, M Pigou, P Fede, R Ansart, C Baudry… - Powder Technology, 2020 - Elsevier
For the last 30 years, experimental and modeling studies have been carried out on fluidized
bed reactors from laboratory up to industrial scales. The application of developed models for …

Sand-assisted fluidization of large cylindrical and spherical biomass particles: Experiments and simulation

F Fotovat, R Ansart, M Hemati, O Simonin… - Chemical Engineering …, 2015 - Elsevier
In this study, bubbling fluidization of a sand fluidized bed with different biomass loadings are
investigated by means of the experiments and numerical simulation. The radioactive particle …

A large interface model for two-phase CFD

P Coste - Nuclear Engineering and Design, 2013 - Elsevier
In the context of the Pressurized Thermal Shock (PTS) studies related to PWR life extension,
a two-phase CFD (Eulerian two-field 3D transient) approach has been developed and …

Modelling and computation of cavitation and boiling bubbly flows with the NEPTUNE_CFD code

S Mimouni, M Boucker, J Laviéville, A Guelfi… - … Engineering and Design, 2008 - Elsevier
This paper focuses on the modelling and the numerical simulation with the NEPTUNE_CFD
code of cavitation phenomena and boiling bubbly flows. Compressible, unsteady, turbulent …

Calibrating the frictional-pressure model from two-fluid simulation of fluidised beds in the defluidisation regime

D Dupuy, Y Badran, R Ansart, O Simonin - Powder Technology, 2024 - Elsevier
The two-fluid simulation of a fluidised bed of non-adhesive particles, in which particles are
represented as a continuous medium, requires a model for the pressure associated with …

A generalized turbulent dispersion model for bubbly flow numerical simulation in NEPTUNE_CFD

J Laviéville, N Mérigoux, M Guingo, C Baudry… - … Engineering and Design, 2017 - Elsevier
The NEPTUNE_CFD code, based upon an Eulerian multi-fluid model, is developed within
the framework of the NEPTUNE project, financially supported by EDF (Electricité de France) …

Investigation of near-wall particle statistics in CFD-DEM simulations of dense fluidised beds and derivation of an Eulerian particle dynamic wall boundary condition

D Dupuy, R Ansart, O Simonin - Journal of Fluid Mechanics, 2024 - cambridge.org
In two-fluid simulations of gas–solid fluidised beds, the gaseous phase and the particulate
phase are modelled as continuous media. The stress exerted by the particulate medium on …

Validation of the large interface method of NEPTUNE_CFD 1.0. 8 for pressurized thermal shock (PTS) applications

P Coste, J Laviéville, J Pouvreau, C Baudry… - … Engineering and Design, 2012 - Elsevier
NEPTUNE_CFD is a code based on a 3D transient Eulerian two-fluid model. One of the
main application targets is the two-phase Pressurized Thermal Shock (PTS), which is related …

Assessment of CFD codes used in nuclear reactor safety simulations

BL Smith - Nuclear Engineering and Technology, 2010 - koreascience.kr
Following a joint OECD/NEA-IAEA-sponsored meeting to define the current role and future
perspectives of the application of Computational Fluid Dynamics (CFD) to nuclear reactor …