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Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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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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Remembering Charles E. Till
Charles E. Till
Charles E. Till, an ANS member since 1963 and Fellow since 1987, passed away on March 22 at the age of 89. He earned bachelor’s and master’s degrees from the University of Saskatchewan and a Ph.D. in nuclear engineering from Imperial College, University of London. Till initially worked for the Civilian Atomic Power Department of the Canadian General Electric Company, where he was the physicist in charge of the startup of the first prototype CANDU reactor in Canada.
Till joined Argonne National Laboratory in 1963 in the Applied Physics Division, where he worked as an experimentalist in the Fast Critical Experiments program. He then moved to additional positions of increasing responsibility, becoming division director in 1973. Under his leadership, the Applied Physics Division established itself as one of the elite reactor physics organizations in the world. Both the experimental (critical experiments and nuclear data measurements) and nuclear analysis methods work were internationally recognized. Till led Argonne’s participation in the International Nuclear Fuel Cycle Evaluation (INFCE), and he was the lead U.S. delegate to INFCE Working Group 5, Fast Breeders.
Tsutomu Ikeno, Takeo Kajishima
Nuclear Technology | Volume 158 | Number 2 | May 2007 | Pages 249-260
Technical Paper | Nuclear Reactor Thermal Hydraulics | doi.org/10.13182/NT07-A3840
Articles are hosted by Taylor and Francis Online.
A computational model based on a large-eddy simulation (LES) technique was proposed to estimate turbulent mixing and pressure drop in subchannels with grid spacers. For an efficient treatment of this complex geometry, improvements were made to the LES technique coupled with an immersed boundary method: A one-equation dynamic subgrid scale model was introduced to account for the complex geometry without any artificial modification; the higher order accuracy was maintained by a consistent treatment of boundary conditions for velocity and pressure on solid walls. Computations were carried out for each of the convolute and periodic arrangements with two-step inclinations of the mixing vanes. The results reasonably reproduced the geometric effect in the turbulent mixing and drag coefficients for the flow, including unsteady separation and multiple vortices. The present computational model is useful for designing grid spacers: By coarser mesh, one can screen several candidates for spacer design; by finer mesh, more quantitative analysis is possible.