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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2027 ANS Winter Conference and Expo
October 31–November 4, 2027
Washington, DC|The Westin Washington, DC 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
Nov 2024
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
December 2024
Nuclear Technology
Fusion Science and Technology
November 2024
Latest News
Disney World should have gone nuclear
There is extra significance to the American Nuclear Society holding its annual meeting in Orlando, Florida, this past week. That’s because in 1967, the state of Florida passed a law allowing Disney World to build a nuclear power plant.
T. Ozeki, N. Aiba, N. Hayashi, T. Takizuka, M. Sugihara, N. Oyama
Fusion Science and Technology | Volume 50 | Number 1 | July 2006 | Pages 68-75
Technical Paper | doi.org/10.13182/FST06-A1221
Articles are hosted by Taylor and Francis Online.
A strategy for integrated modeling of burning plasmas at Japan Atomic Energy Agency is described. In order to simulate the burning plasma, which has the complex feature of widely different timescales and spatial scales, a simulation code cluster based on the TOPICS transport code is being developed by integrating heating and current drive, impurity transport, the edge pedestal model, the divertor model, the magnetohydrodynamics (MHD), and the high-energy behavior model. The developed integration models are validated by fundamental research from JT-60U experiments and the simulation based on the First Principle in our strategy. The integration of MHD stability and the transport progresses for three phenomena with different timescales of neoclassical tearing modes (NTMs) (~NTM ~ 10-2R), beta limits (~Alfvén), and edge-localized modes (ELMs) (intermittent of E and Alfvén). Here, R, Alfvén, and E are the resistive skin time, the Alfvén transit time, and the energy confinement time, respectively. The integrated model of the NTM is produced by coupling the modified Rutherford equation with the transport equation. The integrated model of the beta limits is developed by the low-n stability analysis of downstreaming data from the TOPICS code. The integrated model of the ELM is developed by the iterative calculation of the MARG2D ideal MHD stability code and the TOPICS code. These models are being validated by the data from the JT-60 experiments and estimate the plasma performance for burning plasmas.
