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
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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Nuclear Science and Engineering
February 2025
Nuclear Technology
Fusion Science and Technology
Latest News
A more open future for nuclear research
A growing number of institutional, national, and funder mandates are requiring researchers to make their published work immediately publicly accessible, through either open repositories or open access (OA) publications. In addition, both private and public funders are developing policies, such as those from the Office of Science and Technology Policy and the European Commission, that ask researchers to make publicly available at the time of publication as much of their underlying data and other materials as possible. These, combined with movement in the scientific community toward embracing open science principles (seen, for example, in the dramatic rise of preprint servers like arXiv), demonstrate a need for a different kind of publishing outlet.
Kazuyuki Takase
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 651-655
Safety and Environment (Poster Session) | doi.org/10.13182/FST98-A11963688
Articles are hosted by Taylor and Francis Online.
An analytical study was performed to understand the physical phenomena after an ingress-of-coolant event (ICE) in a fusion reactor. A simulation code was developed to identify two-phase flow behavior in a fusion reactor vacuum vessel (VV). It consisted of mass, momentum, and energy equations of the liquid and gas. Numerical simulations were carried out to obtain quantitative predictions. Distributions of pressure, temperature, velocity and void fraction in the VV were obtained and an impingement-jet behavior of water under vacuum conditions were clarified numerically.
