Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Namane, Mechitoua"'
Autor:
Etienne Studer, Danièle Abdo, Sonia Benteboula, Gilles Bernard-Michel, Nadia Coulon, Frédéric Dabbene, Sergey Kudriakov, Jean-Paul Magnaud, Olivier Norvez, Régis Tomassian, Jean-Luc Widloecher, Alberto Beccantini, Stéphane Gounand, Jérôme Brinster, Ahmed Bentaib, Serge Guieu, Namane Mechitoua
Publikováno v:
Revue Générale Nucléaire. :48-53
Le CEA s’est doté d’une compétence forte pour comprendre, modéliser et prévenir le risque hydrogène dans les installations nucléaires. À partir du milieu des années 1990, une approche couplée numérique et expérimental a été mise en o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02c8d349c6ec1f904f1a5146ed58c1e1
https://doi.org/10.1051/rgn/20181048
https://doi.org/10.1051/rgn/20181048
Publikováno v:
Science and Technology of Nuclear Installations, Vol 2011 (2011)
A large amount of Hydrogen gas is expected to be released within the dry containment of a pressurized water reactor (PWR), shortly after the hypothetical beginning of a severe accident leading to the melting of the core. According to local gas concen
Externí odkaz:
https://doaj.org/article/3e75596298324cd49621d01c22605e12
Autor:
G. Bois, Nicolas Mérigoux, Stephane Mimouni, M. Guingo, Namane Mechitoua, J. Laviéville, O. Marfaing
Publikováno v:
Chemical Engineering Science
Chemical Engineering Science, 2016, 152, pp.579-585. ⟨10.1016/j.ces.2016.06.041⟩
Chemical Engineering Science, 2016, 152, pp.579-585. ⟨10.1016/j.ces.2016.06.041⟩
The problem of a steady, axisymmetric, fully developed adiabatic bubbly flow in a vertical pipe is studied analytically with the two-fluid model. The exchange of momentum between the phases is described as the sum of drag, lift, wall and dispersion c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc72c003c59eb889a1541dd45c4870e7
https://doi.org/10.1016/j.ces.2016.06.041
https://doi.org/10.1016/j.ces.2016.06.041
Publikováno v:
Nuclear Engineering and Design. 299:28-36
Extensive efforts have been made in the last five decades to evaluate the boiling heat transfer coefficient and the critical heat flux in particular. Boiling crisis remains a major limiting phenomenon for the analysis of operation and safety of both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6dcabafc9fce53b24550b6f3755adfc
https://doi.org/10.1016/j.nucengdes.2015.07.017
https://doi.org/10.1016/j.nucengdes.2015.07.017
Autor:
Studer, Etienne, Danièle, Abdo, Sonia, Benteboula, Gilles, Bernard-Michel, Nadia, Coulon, Frédéric, Dabbene, Sergey, Kudriakov, Jean-Paul, Magnaud, Olivier, Norvez, Régis, Tomassian, Jean-Luc, Widloecher, Alberto, Beccantini, Stéphane, Gounand, Jérôme, Brinster, Ahmed, Bentaib, Guieu, Serge, Namane, Mechitoua
Publikováno v:
Revue Generale du Nucleaire (RGN)
Revue Generale du Nucleaire (RGN), 2018, 1, pp.48-53. ⟨10.1051/rgn/20181048⟩
Revue Generale du Nucleaire (RGN), 2018, 1, pp.48-53. ⟨10.1051/rgn/20181048⟩
International audience; Le CEA s’est doté d’une compétence forte pour comprendre, modéliser et prévenir le risque hydrogène dans les installations nucléaires. À partir du milieu des années 1990, une approche couplée numérique et expéri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9b160e6f1ab2651f138f2fec11526863
https://cea.hal.science/cea-02339835/document
https://cea.hal.science/cea-02339835/document
Autor:
William Benguigui, Nicolas Mérigoux, Stéphane Vincent, J. Malet, J. Laviéville, M. Guingo, Namane Mechitoua, Stephane Mimouni, Mickael Hassanaly, Solène Fleau, Arnaud Foissac
Publikováno v:
Science and Technology of Nuclear Installations, Vol 2017 (2017)
Science and Technology of Nuclear Installations
Science and Technology of Nuclear Installations, Hindawi, 2017, ⟨10.1155/2017/3238545⟩
Science and Technology of Nuclear Installations, 2017
Science and Technology of Nuclear Installations
Science and Technology of Nuclear Installations, Hindawi, 2017, ⟨10.1155/2017/3238545⟩
Science and Technology of Nuclear Installations, 2017
The objective of this paper is to give an overview of the capabilities of Eulerian bifluid approach to meet the needs of studies for nuclear safety regarding hydrogen risk, boiling crisis, and pipes and valves maintenance. The Eulerian bifluid approa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3a7637c8363fc80abb7ccd5dd04f4bf
https://doaj.org/article/1d2c15de060a446d8ae8dd08310d8b43
https://doaj.org/article/1d2c15de060a446d8ae8dd08310d8b43
Publikováno v:
Journal of Computational and Applied Mathematics
Journal of Computational and Applied Mathematics, Elsevier, 2014, 259, pp.711-719. ⟨10.1016/j.cam.2013.05.003⟩
Journal of Computational and Applied Mathematics, Elsevier, 2014, 259, pp.711-719. ⟨10.1016/j.cam.2013.05.003⟩
This paper presents an advanced performance study of a multigrid method designed for convection-diffusion problems developed in Khelifi et al. (2011) [24]. The proposed scheme with the separation of the operators enables an individual treatment for e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::481fce80bf7ab818e03be14b6102a74e
https://doi.org/10.1016/j.cam.2013.05.003
https://doi.org/10.1016/j.cam.2013.05.003
Autor:
Namane Mechitoua, Alexandre Zanchetti, Mickael Hassanaly, Herve Cordier, Stephane Mimouni, Antonio Sanna
Publikováno v:
Volume 4: Computational Fluid Dynamics (CFD) and Coupled Codes; Decontamination and Decommissioning, Radiation Protection, Shielding, and Waste Management; Workforce Development, Nuclear Education and Public Acceptance; Mitigation Strategies for Beyond Design Basis Events; Risk Management.
The Fukushima accident reminded us of the possible consequences in terms of radiological release that can result from a hydrogen explosion in a nuclear power plant, and, specifically, within the containment of a water cooled reactor building. Some mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b2f8a7e49ef19affbe384fb4bd8a4bf
https://doi.org/10.1115/icone24-60844
https://doi.org/10.1115/icone24-60844
Publikováno v:
La Houille Blanche. 92:121-128
Le travail presente dans cet article porte sur la modelisation et la simulation numerique des phenomenes de cavitation. Les germes de vapeur sont generes en paroi ou sont pre-existants dans l’ecoulement. La vapeur creee par nucleation en paroi ou p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daec17699f7308509f8e2dcc469b5a8e
https://doi.org/10.1051/lhb:2006110
https://doi.org/10.1051/lhb:2006110
Publikováno v:
Proceedings of the International Symposium Finite Volumes for Complex Applications VI (FVCA 2011)
International Symposium Finite Volumes for Complex Applications VI (FVCA 2011)
International Symposium Finite Volumes for Complex Applications VI (FVCA 2011), Jun 2011, Prague, Czech Republic
HAL
Finite Volumes for Complex Applications VI Problems & Perspectives ISBN: 9783642206702
International Symposium Finite Volumes for Complex Applications VI (FVCA 2011)
International Symposium Finite Volumes for Complex Applications VI (FVCA 2011), Jun 2011, Prague, Czech Republic
HAL
Finite Volumes for Complex Applications VI Problems & Perspectives ISBN: 9783642206702
The paper focuses on an aggregation-based algebraic multigrid method applied to convection/diffusion problems. We show that for an unstructured finite volume approach on arbitrary shaped cells, the separation of the two operators associated with suit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a763634aa876cd3f9fd8381002f15b6
https://hal.archives-ouvertes.fr/hal-00622943
https://hal.archives-ouvertes.fr/hal-00622943