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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Jun 2025
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Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Technical Session|Computational Thermal Hydraulics
Tuesday, August 22, 2023|10:45AM–12:25PM EDT|Columbia 11/12
Session Chair:
Yixiang Liao (HZDR)
Alternate Chair:
Victor Habiyaremye (Nuclear Research & Consultancy Group)
Session Organizer:
Igor A. Bolotnov
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A Numerical Study of Melt Penetration into a Particulate Bed
10:45–11:05AM EDT
Liang Chen (Royal Institute of Technology), Andrei Komlev (Royal Institute of Technology), Weimin Ma (Royal Institute of Technology), Sevostian Bechta (Royal Institute of Technology)
Paper
Mesoscopic Flow Boiling Simulation of a Hypervapotron Cooling Channel for Fusion Application
11:05–11:25AM EDT
Hoongyo Oh (Pohang Univ. Science and Technology), HangJin Jo (Pohang Univ. Science and Technology)
Sloshing in Cylindrical Tanks: Assessment of CFD OpenFOAM Two-Phase Models Accuracy
11:25–11:45AM EDT
A. Cantiani (von Karman Institute for Fluid Dynamics), J. Muller (von Karman Institute for Fluid Dynamics), L. Koloszar (von Karman Institute for Fluid Dynamics), P. Planquart (von Karman Institute for Fluid Dynamics)
Numerical Transfer Towards Unresolved Morphology Representation in the MultiMorph Model
11:45AM–12:05PM EDT
Richard Meller (Helmholtz-Zentrum Dresden-Rossendorf), Benjamin Krull (Helmholtz-Zentrum Dresden-Rossendorf), Fabian Schlegel (Helmholtz-Zentrum Dresden-Rossendorf), Matej Tekavčič (Jožef Stefan Institute)
CFD Simulations of a LOCA Scenario for a Containment Building
12:05–12:25PM EDT
Stephane Mimouni (EDF R&D), Ayouba Fofana (EDF R&D)
Presented by Chai Koren (EDF)
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