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Multi-physic simulations of irradiation experiments in a technological irradiation reactor; Modelisation pluridisciplinaire d'experiences d'irradiation dans un reacteur d'irradiation technologique

Abstract

A Material Testing Reactor (MTR) makes it possible to irradiate material samples under intense neutron and photonic fluxes. These experiments are carried out in experimental devices localised in the reactor core or in periphery (reflector). Available physics simulation tools only treat, most of the time, one physics field in a very precise way. Multi-physic simulations of irradiation experiments therefore require a sequential use of several calculation codes and data exchanges between these codes: this corresponds to problems coupling. In order to facilitate multi-physic simulations, this thesis sets up a data model based on data-processing objects, called Technological Entities. This data model is common to all of the physics fields. It permits defining the geometry of an irradiation device in a parametric way and to associate information about materials to it. Numerical simulations are encapsulated into interfaces providing the ability to call specific functionalities with the same command (to initialize data, to launch calculations, to post-treat, to get results,... ). Thus, once encapsulated, numerical simulations can be re-used for various studies. This data model is developed in a SALOME platform component. The first application case made it possible to perform neutronic simulations (OSIRIS reactor and RJH) coupled with fuel behavior simulations.  More>>
Authors:
Publication Date:
Sep 15, 2007
Product Type:
Thesis/Dissertation
Report Number:
FRNC-TH-7527
Resource Relation:
Other Information: TH: These informatique et mathematiques; [70 refs]; Also available from Universite de la Mediterranee Aix-Marseille-2 Jardin du Pharo, 58, boulevard Charles-Livon, 13264 - Marseille Cedex 07 (France)
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; A CODES; AGING; CHEMICAL RADIATION EFFECTS; COMPUTERIZED SIMULATION; COUPLING; JULES HOROWITZ REACTOR; NEUTRON FLUX; OSIRIS REACTOR; PHOTONS; PHYSICAL RADIATION EFFECTS; RESEARCH PROGRAMS
OSTI ID:
21096944
Research Organizations:
Aix-Marseille-2 Univ., 13 - Marseille (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0801733107573
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
219 pages
Announcement Date:
Dec 05, 2008

Citation Formats

Bonaccorsi, Th. Multi-physic simulations of irradiation experiments in a technological irradiation reactor; Modelisation pluridisciplinaire d'experiences d'irradiation dans un reacteur d'irradiation technologique. France: N. p., 2007. Web.
Bonaccorsi, Th. Multi-physic simulations of irradiation experiments in a technological irradiation reactor; Modelisation pluridisciplinaire d'experiences d'irradiation dans un reacteur d'irradiation technologique. France.
Bonaccorsi, Th. 2007. "Multi-physic simulations of irradiation experiments in a technological irradiation reactor; Modelisation pluridisciplinaire d'experiences d'irradiation dans un reacteur d'irradiation technologique." France.
@misc{etde_21096944,
title = {Multi-physic simulations of irradiation experiments in a technological irradiation reactor; Modelisation pluridisciplinaire d'experiences d'irradiation dans un reacteur d'irradiation technologique}
author = {Bonaccorsi, Th}
abstractNote = {A Material Testing Reactor (MTR) makes it possible to irradiate material samples under intense neutron and photonic fluxes. These experiments are carried out in experimental devices localised in the reactor core or in periphery (reflector). Available physics simulation tools only treat, most of the time, one physics field in a very precise way. Multi-physic simulations of irradiation experiments therefore require a sequential use of several calculation codes and data exchanges between these codes: this corresponds to problems coupling. In order to facilitate multi-physic simulations, this thesis sets up a data model based on data-processing objects, called Technological Entities. This data model is common to all of the physics fields. It permits defining the geometry of an irradiation device in a parametric way and to associate information about materials to it. Numerical simulations are encapsulated into interfaces providing the ability to call specific functionalities with the same command (to initialize data, to launch calculations, to post-treat, to get results,... ). Thus, once encapsulated, numerical simulations can be re-used for various studies. This data model is developed in a SALOME platform component. The first application case made it possible to perform neutronic simulations (OSIRIS reactor and RJH) coupled with fuel behavior simulations. In a next step, thermal hydraulics could also be taken into account. In addition to the improvement of the calculation accuracy due to the physical phenomena coupling, the time spent in the development phase of the simulation is largely reduced and the possibilities of uncertainty treatment are under consideration. (author)}
place = {France}
year = {2007}
month = {Sep}
}