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.
Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
DOE issues RFQ for clean-energy projects at WIPP
The Department of Energy has issued a request for qualifications (RFQ) for interested parties that are looking to establish carbon pollution–free electricity (CFE) projects at its Waste Isolation Pilot Plant site in New Mexico.
B. J. Kern, D. L. Sadowski, S. M. Ghiaasiaan, S. I. Abdel-Khalik
Fusion Science and Technology | Volume 52 | Number 4 | November 2007 | Pages 958-962
Technical Paper | Inertial Fusion Technology: Drivers and Advanced Designs | doi.org/10.13182/FST07-A1618
Articles are hosted by Taylor and Francis Online.
Compressible two-phase (liquid/gas) jets have been proposed as a means of protecting the chamber walls in high-yield, low repetition rate, Z-Pinch IFE reactor systems. The aspect ratio (height-to-thickness/diameter ratio) of such jets is expected to be large, so that the void fraction may vary significantly along the flow direction. An experimental investigation was conducted to determine the effect of various design and operational parameters on the void fraction distribution within a planar, downward-flowing, two-phase (liquid/gas) free jet. An air/water jet with an initial cross section of 1.0 cm × 10.0 cm was used, and different liquid inlet velocities and gas-to-liquid volumetric flow rate ratios were tested. Local void fractions at different locations along the width and length of the jets were measured by gamma-ray densitometry. The results indicated that buoyancy caused significant slip between the two phases, leading to the conclusion that homogeneous two-phase flow models cannot accurately model the behavior of such jets. The data obtained in this investigation can be used to validate predictions of mechanistic models for jet dynamics and shock attenuation.