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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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!
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BREAKING NEWS: Trump issues executive orders to overhaul nuclear industry
The Trump administration issued four executive orders today aimed at boosting domestic nuclear deployment ahead of significant growth in projected energy demand in the coming decades.
During a live signing in the Oval Office, President Donald Trump called nuclear “a hot industry,” adding, “It’s a brilliant industry. [But] you’ve got to do it right. It’s become very safe and environmental.”
R. C. Bauer
Nuclear Technology | Volume 200 | Number 2 | November 2017 | Pages 177-188
Technical Note | doi.org/10.1080/00295450.2017.1360715
Articles are hosted by Taylor and Francis Online.
Computational fluid dynamics (CFD) tools are becoming more widely used in thermal-hydraulic (T/H) and plant analyses due to advances in computational capability, data storage, and speed. However, to date, most CFD studies are ad hoc in nature with little emphasis on building links between and among CFD studies and CFD users. Thus, CFD codes have not yet been effectively leveraged as design tools within the T/H and nuclear applications communities due to lack of a comprehensive and rigorous approach to both verification and validation and uncertainty propagation. Consequentially, CFD is generally relegated to limited diagnostic use or as an adjunct to conventional lumped-parameter codes that often are based on limited testing and use conservative bounding factors applied to the needed design calculations.
Because significant technical progress and development of CFD have occurred over the last decade, the potential now exists to move the use of CFD into the mainstream of analysis tools to address design, operational, and regulatory issues for complex hydraulic systems. This potential can serve as a basis upon which to develop CFD for use in an integrated design-by-simulation (IDS) environment. The CFD methodology to provide this rigor is identified as predictive-CFD (P-CFD) in this technical note.
In the P-CFD/IDS methodology, synergy and consensus will be obtained through more rigorous validation of the underlying physics phenomena of each analysis objective through use of an extensive database of validation-level tests (VLTs) by many universities and laboratories. This approach logically suggests the creation of a national P-CFD database to contain these VLT data sets for general practitioner access. Thus, the underlying physics is a building block for multiple system objectives whose phenomena require those physics behaviors for the needed assessments. By using the P-CFD/IDS methodology, CFD methods can be made consistent, credible, and reproducible.
Extensive references have been included to provide the status of the underlying background that supports P-CFD/IDS development. The path outlined is fully practical but difficult. This technical note is written to show a framework by which a validated CFD study for a given hydraulic objective can be prepared and used for the analyses of complex hydraulic systems to support design conclusions.