Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Simone Santandrea"'
APOLLO3 homogenization techniques for transport core calculations—application to the ASTRID CFV core
Autor:
Jean-François Vidal, Pascal Archier, Bastien Faure, Valentin Jouault, Jean-Marc Palau, Vincent Pascal, Gérald Rimpault, Fabien Auffret, Laurent Graziano, Emiliano Masiello, Simone Santandrea
Publikováno v:
Nuclear Engineering and Technology, Vol 49, Iss 7, Pp 1379-1387 (2017)
This paper presents a comparison of homogenization techniques implemented in the APOLLO3 platform for transport core calculations: standard scalar flux weighting and new flux–moment homogenization, in different combinations with (or without) leakag
Externí odkaz:
https://doaj.org/article/477c8ca3a3094f79947d6b834be5c8d7
Publikováno v:
Annals of Nuclear Energy. 165:108753
In the framework of the European project CORTEX, included in the H2020 program, the experimental campaign carried out with the CROCUS reactor, at the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland, aims at setting up methodologies and
Publikováno v:
Annals of Nuclear Energy. 165:108673
A polynomial expansion for cross sections has been introduced in the 3D Method Of Characteristics (MOC) solver of the APOLLO3® code, with the aim of applying the method to depleted systems. This paper addresses the suitable adaptation of the MOC equ
Autor:
A. Gammicchia, Sandra Dulla, Simone Santandrea, Z. Stankovski, P. Mosca, Richard Sanchez, Igor Zmijarevic
Publikováno v:
Annals of Nuclear Energy
Annals of Nuclear Energy, Elsevier Masson, 2020, 137, pp.107070-. ⟨10.1016/j.anucene.2019.107070⟩
Annals of Nuclear Energy, 2020, 137, pp.107070-. ⟨10.1016/j.anucene.2019.107070⟩
Annals of Nuclear Energy, Elsevier Masson, 2020, 137, pp.107070-. ⟨10.1016/j.anucene.2019.107070⟩
Annals of Nuclear Energy, 2020, 137, pp.107070-. ⟨10.1016/j.anucene.2019.107070⟩
A 2-D noise model is implemented in the deterministic reactor code APOLLO3® to simulate a periodic oscillation of a structural component. The Two/Three Dimensional Transport (TDT) solver, using the Method of Characteristics, is adopted for the calcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f2766411898a3a661ef1c27a2dad149
https://hal.archives-ouvertes.fr/hal-03488749
https://hal.archives-ouvertes.fr/hal-03488749
Publikováno v:
Annals of Nuclear Energy. 113:194-236
In recent years a solver based on the Method of Characteristics (MOC) allowing the treatment of 3D extruded geometries has been developed inside the TDT code of APOLLO3. The standard Step Characteristics (SC) approximation is used and results show an
Autor:
Richard Sanchez, Simone Santandrea
Publikováno v:
Nuclear Science and Engineering
Nuclear Science and Engineering, 2017, 183 (2), pp.196-213. ⟨10.13182/NSE15-78⟩
Nuclear Science and Engineering, 2017, 183 (2), pp.196-213. ⟨10.13182/NSE15-78⟩
International audience; A conservative linear surface approximation (CLS) has been recently introduced to speed up the method of characteristics in unstructured meshes. In this work, we present an analysis of the convergence of the CLS in unstructure
Publikováno v:
Nuclear Engineering and Design. 295:645-650
We have implemented an accurate and fast calculation of the 0th angular moment of the Doppler-broadened kernel P T ( E → E ′) for neutron elastic scattering based on a gas model. An exponential cutoff which accounts for the asymptotic behavior of
Publikováno v:
Nuclear Science and Engineering
Nuclear Science and Engineering, 2017, 186 (3), pp.239-276. ⟨10.1080/00295639.2016.1273634⟩
Nuclear Science and Engineering, 2017, 186 (3), pp.239-276. ⟨10.1080/00295639.2016.1273634⟩
International audience; In this paper we describe some recent developments in the Method of Characteristics (MOC) for three-dimensional (3D) extruded geometries in the nuclear reactor analysis code APOLLO3®. We discuss the parallel strategies implem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb151db04f04dd93d72e5c6de7a3ca89
https://cea.hal.science/cea-02381240
https://cea.hal.science/cea-02381240
Publikováno v:
EPJ Web Conf.
13th International Conference on Radiation Shielding (ICRS-13) & 19th Topical Meeting of the Radiation Protection & Shielding Division of the American Nuclear Society-2016 (RPSD-2016)
13th International Conference on Radiation Shielding (ICRS-13) & 19th Topical Meeting of the Radiation Protection & Shielding Division of the American Nuclear Society-2016 (RPSD-2016), Oct 2016, Paris, France. pp.06027, ⟨10.1051/epjconf/201715306027⟩
EPJ Web of Conferences, Vol 153, p 06027 (2017)
13th International Conference on Radiation Shielding (ICRS-13) & 19th Topical Meeting of the Radiation Protection & Shielding Division of the American Nuclear Society-2016 (RPSD-2016)
13th International Conference on Radiation Shielding (ICRS-13) & 19th Topical Meeting of the Radiation Protection & Shielding Division of the American Nuclear Society-2016 (RPSD-2016), Oct 2016, Paris, France. pp.06027, ⟨10.1051/epjconf/201715306027⟩
EPJ Web of Conferences, Vol 153, p 06027 (2017)
International audience; Recently a solver based on the Method Of Characteristics (MOC) for 3D extruded geometries has been developed in the APOLLO3® project [1]. In this method the domain is divided in regions and the Step Characteristics (SC) appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a407a78aa5775bdbd278ef62c58a583e
https://hal.archives-ouvertes.fr/hal-01645316
https://hal.archives-ouvertes.fr/hal-01645316
Publikováno v:
Annals of Nuclear Energy
Annals of Nuclear Energy, Elsevier Masson, 2016, 87, pp.49-60. ⟨10.1016/j.anucene.2015.05.014⟩
Annals of Nuclear Energy, 2016, 87, pp.49-60. ⟨10.1016/j.anucene.2015.05.014⟩
Annals of Nuclear Energy, Elsevier Masson, 2016, 87, pp.49-60. ⟨10.1016/j.anucene.2015.05.014⟩
Annals of Nuclear Energy, 2016, 87, pp.49-60. ⟨10.1016/j.anucene.2015.05.014⟩
Specialized tracking techniques have been developed for a step-characteristics transport solver. These techniques strongly exploit the regularities of extruded 3D axial geometries to reduce the number of operations and the memory requirements of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::401500b5e67c86d646785b8a4ae7bc3c
https://hal-cea.archives-ouvertes.fr/cea-03189927
https://hal-cea.archives-ouvertes.fr/cea-03189927