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Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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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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Kentucky legislature sends nuclear bills to governor
Kentucky’s Republican-majority legislature passed a bill this past week that could bring nuclear energy to the “coal-is-king” state as lawmakers broadly seek solutions to reduce carbon emissions. The bill went to Democratic Gov. Andrew Beshear on Monday for final approval.
Elia Merzari, Hisashi Ninokata, Sheng Wang, Emilio Baglietto
Nuclear Technology | Volume 165 | Number 3 | March 2009 | Pages 313-320
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT09-A4104
Articles are hosted by Taylor and Francis Online.
The present work considers simulation of free-surface vortices by means of computational fluid dynamics. The issue is relevant for the design of sodium-cooled fast breeder reactors (FBRs). In fact, the eventual entrainment of gas in the reactor core of an FBR may cause abnormal operation condition because of disturbed reactivity.The foci of this work are turbulence modeling and free-surface modeling. Two different approaches are tested in the benchmark case of Moriya et al.: single-phase simulation (through large eddy simulation and detached eddy simulation methodology) and two-phase simulation (combining a volume-of-fluid method with turbulence modeling). Results are in excellent agreement with the experiment for the circumferential velocity in both cases if the grid adopted is sufficiently fine near the vortex core. Through additional grid refinement it is possible to correctly reproduce the shape of the vortex dimple. The code employed is STAR-CD 4.0.