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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.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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55th annual Nuclear News Buyers Guide now available
For American Nuclear Society members and Nuclear News subscribers, the 2024 Buyers Guide is now available in the ANS Digital Nuclear Library. The print version will be mailed along with the May “Capacity Factors/Nuclear Security” issue of Nuclear News magazine.
The corresponding ANS online Buyers Guide database is available year-round to all readers—updated with the latest products, services, and suppliers contact information for more than 600 nuclear-related companies.
H. Takahashi, H. Utoh, S. Kitajima, M. Isobe, C. Suzuki, M. Takeuchi, R. Ikeda, Y. Tanaka, M. Yokoyama, K. Toi, S. Okamura, M. Sasao
Fusion Science and Technology | Volume 51 | Number 1 | January 2007 | Pages 54-60
Technical Paper | Stellarators | doi.org/10.13182/FST07-A1287
Articles are hosted by Taylor and Francis Online.
Electrode biasing experiments under electrode current control were carried out in the Tohoku University Heliac and the Compact Helical System to examine the role of an ion viscosity on a transition to a high-confinement regime and to investigate the dependence of the ion viscosity on magnetic structure. Observations included (a) an increase of electron density, (b) an increase of electron stored energy, (c) a formation of the steep gradient of electron density, and (d) a formation of a negative electric field in both devices during electrode biasing negatively. The dependence of the ion viscosity normalized by the ion pressure on the poloidal Mach number qualitatively agreed with the neoclassical theory based on the Shaing model. This result supported the transition mechanism of the neoclassical theory based on ion viscosity, which advocates that the transition to a high-confinement mode is the bifurcation phenomenon resulting from the existence of local maximum in ion viscosity.