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
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
College students help develop waste-measuring device at Hanford
A partnership between Washington River Protection Solutions (WRPS) and Washington State University has resulted in the development of a device to measure radioactive and chemical tank waste at the Hanford Site. WRPS is the contractor at Hanford for the Department of Energy’s Office of Environmental Management.
Yuichiro Yamashita, Takehiko Yokomine, Shinji Ebara, Akihiko Shimizu
Fusion Science and Technology | Volume 46 | Number 4 | December 2004 | Pages 541-547
Technical Paper | doi.org/10.13182/FST04-A589
Articles are hosted by Taylor and Francis Online.
The purpose of the Experimental Vacuum Ingress Test Apparatus (EVITA) program is to obtain useful data for safety analysis of serious potential accidents for ITER. The numerical predictions for EVITA have been done by using the MELCOR, PAX, and CONSEN codes under conditions in which temperature is always kept above 273 K. In the EVITA program, high-temperature and high-pressure steam is injected into the vacuum vessel housing the cryogenic plate. Consequently, the phenomena that occur in the vicinity of the impingement surface are expected to be exceedingly transient and complex. The subject of this study is the development of a valid numerical code for the EVITA program. A key point of this study is to describe all of the phenomena, for example, shock-wave propagation and phase change under low pressure. In this study, the C-CUP method is employed, which describes these phenomena. To investigate phenomena with EVITA, numerical analysis had been done with several conditions concerned with input power. As a result, we succeeded in obtaining a fundamental code for the EVITA program as well as interesting views of EVITA.