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.
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.
2020 ANS Virtual Winter Meeting
November 16–19, 2020
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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Nuclear in K-12 education: Overview of ANS toolkit and reflections from educators
A free webinar today from 3:00 p.m.-4:30 p.m. (EDT) will look at the resources that the American Nuclear Society has developed with Discovery Education and the Department of Energy’s Office of Nuclear Energy to help K-12 educators teach nuclear science and technology.
The webinar will begin with an overview of the resources, followed by reflections and commentary from three educators of various grade levels on their experiences teaching nuclear science and their thoughts about ANS’s instructional materials. The webinar will conclude with a Q&A session with the panelists.
Registration is required for this Nuclear Science Week event.
G. L. Mesina, D. L. Aumiller, F. X. Buschman, M. R. Kyle
Nuclear Science and Engineering | Volume 182 | Number 1 | January 2016 | Pages 83-95
Technical Paper | Special Issue on the RELAP5-3D Computer Code | dx.doi.org/10.13182/NSE15-3
Articles are hosted by Taylor and Francis Online.
The RELAP5-3D code is typically used to model stationary, land-based, thermal-hydraulic systems and contains specialized physics for the modeling of nuclear power plants. It can also model thermal-hydraulic systems in other inertial and accelerating frames of reference. By changing the magnitude of the gravitational vector through user input, RELAP5-3D can model thermal-hydraulic systems on planets, moons, and space stations. Additionally, the field equations were modified to model thermal-hydraulic systems in a noninertial frame, such as occur onboard moving craft or during earthquakes for land-based systems.
Transient body forces affect fluid flow in thermal-fluid machinery aboard accelerating crafts during rotational and translational accelerations. It is useful to express the equations of fluid motion in the accelerating frame of reference attached to the moving craft. However, careful treatment of the rotational and translational kinematics is required to accurately capture the physics of fluid motion. Correlations for flow at angles between horizontal and vertical are generated via interpolation because limited experimental data exist.
Equations for three-dimensional fluid motion in a noninertial frame of reference are developed. Two different systems for describing rotational motion are presented, user input is discussed, and examples of a modeled simple thermal-hydraulic system undergoing both rotational and translational motion are provided.