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Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Kazuhiro Itoh, Yoshiyuki Tsuji, Hideo Nakamura, Yutaka Kukita
Fusion Science and Technology | Volume 36 | Number 1 | July 1999 | Pages 69-84
Technical Paper | doi.org/10.13182/FST99-A93
Articles are hosted by Taylor and Francis Online.
Experiments are conducted on the initial growth of free surface waves on a high-speed (3.5 to 20 m/s) water jet flow that simulates related aspects of the liquid-lithium target in the International Fusion Materials Irradiation Facility. The waves are measured by using laser beam refraction at the water surface. The boundary layer at the nozzle exit and the recovery of the free surface velocity along the jet are also measured. The experimental results confirm that the nozzle-exit boundary layer has a significant influence on the initial growth of waves. With a turbulent boundary layer at the exit, the jet is covered by three-dimensional irregular waves from its beginning. With a laminar boundary layer, however, two-dimensional regular waves grow on an initially smooth water surface. For the latter case, the dominant frequency of the two-dimensional waves agrees well with the linear stability theory of Brennen.