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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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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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Lightbridge announces first U-Zr fuel rod samples extruded at INL
Lightbridge Corporation announced today that it has reached “a critical milestone” in the development of its extruded solid fuel technology. Coupon samples using an alloy of zirconium and depleted uranium—not the high-assay low-enriched uranium (HALEU) that Lightbridge plans to use to manufacture its fuel for the commercial market—were extruded at Idaho National Laboratory’s Materials and Fuels Complex.
Gung-Huei Chou, Jyh-Chen Chen
Nuclear Science and Engineering | Volume 127 | Number 2 | October 1997 | Pages 220-229
Technical Paper | doi.org/10.13182/NSE97-A28598
Articles are hosted by Taylor and Francis Online.
An analytical study is conducted of condensation heat transfer characteristics under reflux-cooling modes with both constant temperature and constant heat flux (CHF) at the inner wall of a single vertical tube. The effects of interfacial shear stress and convection on the reflux condensation heat transfer are examined analytically. The results indicate that interfacial shear retards the condensate flow and thickens the liquid film layer, which in turn decreases the condensation heat transfer coefficient (HTC). The dimensionless film thickness and local HTC with zero convection varies with an increase in the interfacial shear and has a remarkable effect on the condensation process, especially with a larger condensation length. However, the film Reynolds number has the opposite effect. Additionally, the interfacial shear thickens the film and retards the liquid flow relatively more distinctly for the CHF case. Finally, compared with the experimental data from previous study, the observed trend of the condensation heat transfer can be reasonably described by the present model at moderate film Reynolds numbers.