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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
Thursday, October 7, 2021|8:30–10:10AM EDT
Session Chair:
HyeongKae Park (LANL)
Session Organizer:
Robert Nourgaliev (LLNL)
Student Producer:
Cole Tagasuki (NC State Univ.)
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Implicit Shock Fitting for Multimaterial Shock Dynamics Using a High-Order Space-Time Discontinuous Finite-Element Method
8:30–8:55AM EDT
R. Nourgaliev (LLNL), A. Corrigan (U.S. Naval Research Laboratory), A. Kercher (U.S. Naval Research Laboratory), S. Wopschall (LLNL), P. Greene (LLNL)
Paper
Analysis of Unstable Structures in a Low-Reynolds, Horizontal Channel for Supercritical Fluid Flows
8:55–9:20AM EDT
R. Barney (Univ. of California, Davis), R. Nourgaliev (LLNL), J.P. Delplanque (Univ. of California, Davis), R. McCallen (LLNL)
Computational Fluid Dynamics Mesh Generation of the PSBT Benchmark Subchannels for Use with Nek5000
9:20–9:45AM EDT
David Holler (NC State Univ.), Nilay Atul Kulkarni (NC State Univ.), Maria Avramova (NC State Univ.)
Numerical Modeling of an In-Vessel Flow Limiter Using an Immersed Boundary Approach
9:45–10:10AM EDT
Georis Billo (CEA), Michel Belliard (CEA), Pierre Sagaut (Aix-Marseille Univ.)
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