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
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
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
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
October 1, 2021|12:00–1:30PM (1:00–2:30PM EDT)
ANS Members Only
ANS Members, please log in to watch this webinar.
Nuclear reactor thermal hydraulics refers to the study of fluid flow, heat and mass transfer applied to nuclear technologies. It is a discipline of fundamental importance in both design and safety analysis of nuclear reactors. The Thermal Hydraulic Division of ANS seeks to establish, stimulate, and maintain quality technical and professional approaches in all areas of nuclear thermal hydraulics. To this end, THD hosts a vibrant program that includes the largest international conference in the field (the NURETH conference series).
Research in thermal hydraulics in the United States is highly multi-disciplinary. Researchers apply advanced computational and experimental techniques to study complex phenomena In reactor systems and answer fundamental questions on flow and heat transfer physics. This research is of increasing importance as the nation seeks to develop and deploy advanced reactors, as these designs typically have several thermal hydraulics challenges.
This webinar gave a select overview of thermal hydraulic research in the United States and the role THD has in promoting the exchange of ideas and recognizing excellence in the field.
Panelists
Moderators
Rodolfo Vaghetto Presentation
Guillaume Mignot Presentation
Kevin Robb Presentation
Elia Merzari Presentation
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