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First Steps of the ANTARES Validation for Steady States with TVA Watts Bar Unit 1 Cycle 1 Benchmark.

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Title: First Steps of the ANTARES Validation for Steady States with TVA Watts Bar Unit 1 Cycle 1 Benchmark.
Authors: Bernard, Franck1 (AUTHOR) franck.bernard@asnr.fr, Bonthoux, Sébastien1 (AUTHOR), Forestier, Marc2 (AUTHOR), Sargeni, Antonio1 (AUTHOR), Taforeau, Julien1 (AUTHOR)
Source: Nuclear Science & Engineering. 2026 Suppl 1, Vol. 200, pS693-S706. 14p.
Subject Terms: *Model validation, *Pressurized water reactors, *Thermal hydraulics, *Nuclear energy safety measures, *Neutron transport theory, *Neutrons
Geographic Terms: France
Abstract: In recent years, the French Technical Safety Organization (IRSN) has developed a new project to simulate accurately the interaction between neutronics and thermal-hydraulic phenomena. This project, called the Advanced Neutronics and Thermal-hydraulic for the Analysis of the Reactor Safety (ANTARES), couples the thermal-hydraulic code CATHARE-3 with the three-dimensional neutronics nodal code PARCS. Following the recent reorganization of nuclear safety in France, this project is now led by French Authority for Nuclear Safety and Radiation Protection (ASNR). The aim is to provide ASNR with a multiphysics computing tool for carrying out safety analyses primarily for pressurized water reactors. To increase the reliability of ANTARES, IRSN has decided to participate in the TVA Watts Bar Unit 1 Multi-Physics Multi-Cycle Depletion benchmark proposed and supported within the framework of the Organisation for Economic Co-operation and Development/Nuclear Energy Agency Working Party on Scientific Issues of Reactor Systems working group. After a brief description of the ANTARES computational chain, this paper presents our first results, which demonstrate a good agreement between ANTARES and the proposed reference solutions by the benchmark team. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 192155931
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: First Steps of the ANTARES Validation for Steady States with TVA Watts Bar Unit 1 Cycle 1 Benchmark.
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Science+%26+Engineering%22">Nuclear Science & Engineering</searchLink>. 2026 Suppl 1, Vol. 200, pS693-S706. 14p.
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  Data: *<searchLink fieldCode="DE" term="%22Model+validation%22">Model validation</searchLink><br />*<searchLink fieldCode="DE" term="%22Pressurized+water+reactors%22">Pressurized water reactors</searchLink><br />*<searchLink fieldCode="DE" term="%22Thermal+hydraulics%22">Thermal hydraulics</searchLink><br />*<searchLink fieldCode="DE" term="%22Nuclear+energy+safety+measures%22">Nuclear energy safety measures</searchLink><br />*<searchLink fieldCode="DE" term="%22Neutron+transport+theory%22">Neutron transport theory</searchLink><br />*<searchLink fieldCode="DE" term="%22Neutrons%22">Neutrons</searchLink>
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  Data: In recent years, the French Technical Safety Organization (IRSN) has developed a new project to simulate accurately the interaction between neutronics and thermal-hydraulic phenomena. This project, called the Advanced Neutronics and Thermal-hydraulic for the Analysis of the Reactor Safety (ANTARES), couples the thermal-hydraulic code CATHARE-3 with the three-dimensional neutronics nodal code PARCS. Following the recent reorganization of nuclear safety in France, this project is now led by French Authority for Nuclear Safety and Radiation Protection (ASNR). The aim is to provide ASNR with a multiphysics computing tool for carrying out safety analyses primarily for pressurized water reactors. To increase the reliability of ANTARES, IRSN has decided to participate in the TVA Watts Bar Unit 1 Multi-Physics Multi-Cycle Depletion benchmark proposed and supported within the framework of the Organisation for Economic Co-operation and Development/Nuclear Energy Agency Working Party on Scientific Issues of Reactor Systems working group. After a brief description of the ANTARES computational chain, this paper presents our first results, which demonstrate a good agreement between ANTARES and the proposed reference solutions by the benchmark team. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=192155931
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        Value: 10.1080/00295639.2025.2530299
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      – Code: eng
        Text: English
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        StartPage: S693
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      – SubjectFull: Model validation
        Type: general
      – SubjectFull: Pressurized water reactors
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      – SubjectFull: Thermal hydraulics
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      – SubjectFull: Nuclear energy safety measures
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      – SubjectFull: Neutron transport theory
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      – SubjectFull: Neutrons
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      – SubjectFull: France
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      – TitleFull: First Steps of the ANTARES Validation for Steady States with TVA Watts Bar Unit 1 Cycle 1 Benchmark.
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              Text: 2026 Suppl 1
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              Y: 2026
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