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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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Ho Nieh nominated to the NRC
Nieh
President Trump recently nominated Ho Nieh for the role of commissioner in the Nuclear Regulatory Commission through the remainder of a term that will expire June 30, 2029.
Nieh has been the vice president of regulatory affairs at Southern Nuclear since 2021, though he is currently working as a loaned executive at the Institute of Nuclear Power Operations, where he has been for more than a year.
Nieh’s experience: Nieh started his career at the Knolls Atomic Power Laboratory, where he worked primarily as a nuclear plant engineer and contributed as a civilian instructor in the U.S. Navy’s Nuclear Power Program.
From there, he joined the NRC in 1997 as a project engineer. In more than 19 years of service at the organization, he served in a variety of key leadership roles, including division director of Reactor Projects, division director of Inspection and Regional Support, and director of the Office of Nuclear Reactor Regulation.
Michio Murase, Hiroaki Suzuki
Nuclear Technology | Volume 68 | Number 3 | March 1985 | Pages 408-417
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT85-A33585
Articles are hosted by Taylor and Francis Online.
Countercurrent gas/liquid flow is examined in parallel channels interconnecting with upper and lower plenums at the upper and lower entries of a reactor core, respectively. The factors controlling the counter-current flow behavior in a single channel and multiple channels are evaluated and a method to predict flow patterns in multiple channels is developed. Experiments in five parallel channels are conducted and show close agreement between predicted and experimental results.
