ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
J. D. Rader, B. H. Mills, D. L. Sadowski, M. Yoda, S. I. Abdel-Khalik
Fusion Science and Technology | Volume 60 | Number 1 | July 2011 | Pages 223-227
Divertor & High Heat Flux Components | Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 1) | doi.org/10.13182/FST10-306
Articles are hosted by Taylor and Francis Online.
As a part of the ARIES study, a modular, helium-cooled, jet-impingement, finger-type divertor design that can accommodate an incident heat flux of 10 MW/m2 has been proposed. An experimental and numerical investigation was undertaken to quantify the thermal performance of a design that closely resembles previously studied finger-type divertors (e.g. HEMJ and HEMP). Experiments were conducted using air in a test module heated with an oxy-acetylene torch to achieve incident heat fluxes as great as 2 MW/m2. These experimental results were compared to numerical predictions.The numerical studies documented here were performed using a commercial computational fluid dynamics (CFD) software package. Simulations were carried out for two different test sections with and without a hexagonal array of cylindrical fins and otherwise identical dimensions and for two different flow directions, reverse flow corresponding to radial inward flow, and forward flow corresponding to jet impingement followed by radial outward flow. The numerical predictions for effective heat transfer coefficients (HTC) are in reasonable agreement with the experimental results for the test section without fins. The numerical predictions overpredict the HTCs for the cases with fins, and resolving this discrepancy is the subject of ongoing work.