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 on track to deliver high-burnup SNF to Idaho by 2027
The Department of Energy said it anticipated delivering a research cask of high-burnup spent nuclear fuel from Dominion Energy’s North Anna nuclear power plant in Virginia to Idaho National Laboratory by fall 2027. The planned shipment is part of the High Burnup Dry Storage Research Project being conducted by the DOE with the Electric Power Research Institute.
As preparations continue, the DOE said it is working closely with federal agencies as well as tribal and state governments along potential transportation routes to ensure safety, transparency, and readiness every step of the way.
Watch the DOE’s latest video outlining the project here.
Alfred W. Reed, Herbert Meister, Daniel J. Sasmor
Nuclear Technology | Volume 78 | Number 1 | July 1987 | Pages 54-61
Technical Paper | Nuclear Safety | doi.org/10.13182/NT87-A34008
Articles are hosted by Taylor and Francis Online.
One of the elements used to compute the dryout heat flux of a debris bed is the capillary pressure/saturation curve. This relationship describes the pressure difference between liquid and vapor phases in a porous bed as a function of saturation. It is used in the calculation of the liquid and vapor pressure drops in the debris and in the calculation of channel depth. The first complete correlation of capillary pressure/saturation data was reported in 1941 by Leverett. Leverett demonstrated that the data for unconsolidated sand in the 45- to 180-µm range could be non-dimensionalized using the liquid surface tension, bed permeability, and void fraction. At the time, the primary interest was in geologic materials and further work on unconsolidated particulate was limited. The presented measurements of capillary pressure are designed to check the range of validity of the Leverett correlation. For beds with narrow particle size distributions, the Leverett correlation is found to be adequate. For beds composed of broad size distributions, the capillary pressure curve changed significantly.