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
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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
Mar 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
April 2024
Nuclear Technology
Fusion Science and Technology
February 2024
Latest News
Remembering Joseph M. Hendrie
Joseph M. Hendrie
To those of us who knew Joe, even prior to his appointment as chair of the Nuclear Regulatory Commission, it is an understatement to say that he was a larger-than-life member of the nuclear science and technology enterprise. He was best known to the broader community for two major accomplishments: the design and construction of the High Flux Beam Reactor (HFBR) at Brookhaven National Laboratory and the creation of the standard review plan (SRP) for the U.S. Atomic Energy Commission.
In addition to the products of these endeavors becoming major fundaments to their respective communities, they were uniquely Joe. The safety analysis report for the HFBR was written essentially single-handedly by him. This was true of the SRP as well, which became the key safety review document for the NRC as it performed safety reviews for the growing number of power reactor applications in the United States. His deep technical knowledge of nuclear engineering and his extraordinary management skills made this possible.
M. Yoda, S. I. Abdel-Khalik, ARIES-IFE Team
Fusion Science and Technology | Volume 46 | Number 3 | November 2004 | Pages 451-469
Technical Paper | ARIES-IFE | doi.org/10.13182/FST04-A583
Articles are hosted by Taylor and Francis Online.
Experimental and numerical studies of the fluid dynamics of thin liquid film wall protection systems have been conducted in support of the ARIES-IFE study. Both the porous "wetted wall" concept, involving low-speed injection through a porous wall normal to the surface, and the "forced film" concept, involving high-speed injection through slots tangential to the surface, have been examined. These initial studies focus upon the "preshot" feasibility of these concepts, between chamber clearing and the fusion event.For the wetted wall, a three-dimensional level contour reconstruction method was used to track the evolution of the liquid film on downward-facing walls for different initial conditions and liquid properties with evaporation and condensation at the free surface. The effects of these parameters on the film dynamics, the free surface topology, the frequency of liquid drop formation and detachment, the minimum film thickness between explosions, and the equivalent diameter of detached drops have been analyzed. Initial experimental results are in reasonable agreement with the numerical predictions. Generalized nondimensional charts for identifying appropriate "design windows" for successful operation of the wetted wall protection concept have been developed. The results demonstrate that a minimum repetition rate is required to avoid liquid dripping into the reactor cavity and that a minimum injection velocity is required in order to maintain a minimum film thickness over the first wall.For the forced film concept, experimental investigations of high-speed water films injected onto downward-facing flat and curved surfaces at angles of inclination up to 45 deg below the horizontal were conducted. Mean detachment length and the lateral extent of the film were measured for a wide range of liquid-solid contact angles at different values of the initial film thickness, liquid injection speed, and surface orientation. The results show that the film detaches earlier (i.e., farther upstream) for nonwetting surfaces and for flat (versus curved) surfaces. The nonwetting flat surface data are therefore used to establish a conservative "design window" for film detachment. Initial observations of film flow around cylindrical obstacles suggest that cylindrical dams are incompatible with forced films.