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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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
Aug 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
September 2024
Nuclear Technology
Fusion Science and Technology
August 2024
Latest News
Nuclear supply chain innovation and collaboration: Keeping the nuclear supply chain viable through change
The next nuclear renaissance may be upon us, but with it comes a perfect storm. The industry is unprepared for a surge in demand for goods and services from both the existing light water fleet and the next generation of reactors. We are currently teetering on the edge of severe supply chain issues, but if the nuclear industry can understand the sources of our challenges, we can mitigate them.
Nancy Ma, John Walker, Tess Moon, Thanh Hua, Basil Picologlou
Fusion Science and Technology | Volume 25 | Number 4 | July 1994 | Pages 398-410
Technical Paper | Blanket Engineering | doi.org/10.13182/FST94-A30246
Articles are hosted by Taylor and Francis Online.
The three-dimensional magnetohydrodynamic (MHD) flow in a pair of finite-length, parallel, equal-area square ducts, connected to single rectangular ducts upstream and downstream is examined. Each duct has a different liner with a thin sheet of metal that is in contact with the coolant and that is electrically insulated from structural walls and from other duct liners, except at the junctions. The objective is to concentrate most of the flow in one of the two parallel ducts by making its metal wall much thinner than that of its neighbor, so that its MHD resistance to flow is smaller. Flow ratios approaching ten are obtained with typical values of the wall conductance ratios, which are proportional to the wall thicknesses. The flow at the entrance is complex, with some flow entering the low-velocity duct and then returning to the entrance, where it swirls around the upstream edge of the common wall to enter the high-velocity duct. The balance between three-dimensional and fully developed pressure drops is investigated as a function of the distance between the entrance and the exit of the parallel ducts.