ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
May 2025
Fusion Science and Technology
Latest News
Sam Altman steps down as Oklo board chair
Advanced nuclear company Oklo Inc. has new leadership for its board of directors as billionaire Sam Altman is stepping down from the position he has held since 2015. The move is meant to open new partnership opportunities with OpenAI, where Altman is CEO, and other artificial intelligence companies.
Technical Session|Sponsored by THD
Tuesday, June 17, 2025|10:00–11:45AM CDT|Chicago Ballroom A
Session Chair:
Dillon R. Shaver
Session Organizer:
Alternate Chair:
Izabela Gutowska
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Modeling the Oregon State University's High Temperature Test Facility via a Porous Media Approach
10:00–10:20AM CDT
Ismail Bouarich (INL), Lise Charlot (INL), Mauricio E. Tano Retamales (INL)
Paper
Benchmarking the OSU HTTF to StarCCM+
10:20–10:40AM CDT
Benjamin Nakhnikian-Weintraub (Oregon State), Izabela Gutowska (Oregon State)
Preliminary CFD Results of the Lower Plenum Mixing Test of the High Temperature Test Facility Benchmark
10:40–11:00AM CDT
Mohammed Muaaz M. Hussain (NRG PALLAS), Ferry Roelofs (NRG PALLAS)
Nuclear Energy Agency (NEA) High-Temperature Test Facility (HTTF) Thermal-Hydraulics Benchmark: Error Scaling Exercise
11:00–11:20AM CDT
Aaron S. Epiney (INL), Ramon K. Yoshiura (INL), Mohammad G. Abdo (INL), Robert Kile (INL)
Progress Towards Validating a New RELAP5-3D Model of the High Temperature Test Facility
11:20–11:40AM CDT
Jonathan L. Barthle (Univ. Tennessee, Knoxville), Aaron S. Epiney (INL), Robert Kile (INL)
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