CFD Simulation of Polydispersed Bubbly Two-Phase Flow around an Obstacle

Autor: E. Krepper, P. Ruyer, M. Beyer, D. Lucas, H.-M. Prasser, N. Seiler

Publikováno v: Science and Technology of Nuclear Installations, Vol 2009 (2009)

This paper concerns the model of a polydispersed bubble population in the frame of an ensemble averaged two-phase flow formulation. The ability of the moment density approach to represent bubble population size distribution within a multi-dimensional

Externí odkaz: https://doaj.org/article/26a627eb0dba4baa91efcaa07314c888

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STUDIES AND CROSS-COMPARISONS OF SEVERE ACCIDENT PREVENTION AND MITIGATION CAPABILITIES OF A SFR AND A GFR

Autor: F. Bertrand, A. Bachrata, N. Seiler, J.B. Droin, A. Mouly

Publikováno v: Nuclear Engineering and Design
Nuclear Engineering and Design, 2022, 395, pp.111838. ⟨10.1016/j.nucengdes.2022.111838⟩

International audience; CEA has developed Generation IV fast neutron reactors with gas and sodium coolants in the two last tenth of years. Namely these reactor projects were the GFR2400 (gas-cooled fast reactor of 2400 thermal megawatts) and ASTRID (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b90580ab5be079186a4135495a83ca6a
https://hal.science/hal-03749579

Thermal-hydraulic two-phase modeling of reactivity-initiated transients with CATHARE2 – Application to SPERT-IV simulation

Autor: Elsa Merle, N. Seiler, O. Clamens, J.-M. Labit

Publikováno v: Nucl.Eng.Des.
Nucl.Eng.Des., 2021, 381, pp.111310. ⟨10.1016/j.nucengdes.2021.111310⟩
Nuclear Engineering and Design
Nuclear Engineering and Design, 2021, 381, pp.111310. ⟨10.1016/j.nucengdes.2021.111310⟩

International audience; Reactivity-Initiated Accidents (RIA) in nuclear reactor cores are very complex multiphysic transients. They consist in a very fast power excursion in the core, leading to wall temperature excursions. Many experiments have show

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91c33bfb1107071afcf4e32c84aa8189
https://hal.archives-ouvertes.fr/hal-03267328

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