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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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Researchers use one-of-a-kind expertise and capabilities to test fuels of tomorrow
At the Idaho National Laboratory Hot Fuel Examination Facility, containment box operator Jake Maupin moves a manipulator arm into position around a pencil-thin nuclear fuel rod. He is preparing for a procedure that he and his colleagues have practiced repeatedly in anticipation of this moment in the hot cell.
Douglas W. Stamps
Nuclear Science and Engineering | Volume 142 | Number 2 | October 2002 | Pages 237-243
Technical Note | doi.org/10.13182/NSE02-A2304
Articles are hosted by Taylor and Francis Online.
A series of experiments was conducted in a right circular cylinder to determine the flow pattern that develops when air circulates from the drag induced by falling water sprays. Two different flow patterns were visually observed and recorded by the distribution of spray mass flux. In one pattern, the airflow took the form of a single three-dimensional toroidal vortex with the air flowing up the sides of the container and down the center thereby concentrating the water sprays in the center of the container. The toroidal vortex was an unstable flow pattern unless the water spray was uniformly distributed along the ceiling. The second pattern was stable and took the form of a single nearly two-dimensional stationary roll with the air flowing up one side of the container and down the other thereby concentrating the water sprays along the downflow side. As the water pressure in the nozzles was increased, the roll did not remain stationary but rotated slowly about the central vertical axis of the container.