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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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!
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Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
T. Kunugi, M. S. Tillack, M. A. Abdou
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1000-1005
Blanket Technology | doi.org/10.13182/FST91-A29473
Articles are hosted by Taylor and Francis Online.
A new computer code has been developed with the capability to model laminar liquid metal fluid flow and heat transfer in relatively complex geometries at parameter values greater than previously possible with a transient 3-D “full” numerical solution of the MHD equations. The full solution method, which includes viscous and inertial terms, provides an exact solution for boundary layers and is valid over a wide range of flow parameters. Previous attempts at numerically solving the full MHD equations have been limited in the range of magnetic field strengths (B) and Reynolds number (Re) which could be accurately modelled. Numerical techniques for treating problems at high B and Re are implemented in this code, named KAT. The KAT code is written in rectangular coordinates, with a sophisticated mesh generator and boundary condition input routines. Single-duct and multiple-duct geometries can be modelled with arbitrary wall conductivity and magnetic field variation throughout the solution domain. The code has been tested and benchmarked against analytical solutions and fully-developed very highly accurate numerical solution obtained by 2-D finite element method (FEM). The KAT solutions are in very good agreement with analytic and FEM solutions. The KAT code was applied to a right-angle rectangular bend problem with inclined B-field. Finally, the capabilities of the code and future applications are discussed.