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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
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!
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WIPP’s SSCVS: A breath of fresh air
This spring, the Department of Energy’s Office of Environmental Management announced that it had achieved a major milestone by completing commissioning of the Safety Significant Confinement Ventilation System (SSCVS) facility—a new, state-of-the-art, large-scale ventilation system at the Waste Isolation Pilot Plant, the DOE’s geologic repository for defense-related transuranic (TRU) waste in New Mexico.
Cherng-Shing Lin, William E. Kastenberg
Nuclear Science and Engineering | Volume 86 | Number 4 | April 1984 | Pages 388-400
Technical Paper | doi.org/10.13182/NSE84-A18639
Articles are hosted by Taylor and Francis Online.
An implicit numerical scheme is developed to compute the transient one-dimensional flow of a two-phase mixture described by an unequal phase velocity (nonhomogeneous) model. This method is based on the modified FLASH-4 technique, but it suffers few of the drawbacks of other solution techniques recently used in the RELAP 4 and RETRAN computer codes. Significant advantages of the method are its consistency, stability, and ease of programming for complicated flow networks. The numerical scheme has been incorporated into a computer code and used to calculate three flow situations: a single-phase gas (ideal gas shock tube) a single-phase liquid (subcooled water blowdown) a two-phase blowdown (the Edwards experiment).