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.
Explore membership for yourself or for your organization.
Conference 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!
Latest Magazine Issues
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
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.
Technical Session|Sponsored by THD
Friday, December 3, 2021|8:00–9:45AM EST |Columbia 10
Session Chair:
Xu Wu (NC State Univ.)
Alternate Chair:
Juliana Duarte (Virginia Tech)
Session Organizer:
Matthew D. Zimmer
To access the session recording, you must be logged in and registered for the meeting.
Register NowLog In
To access paper attachments, you must be logged in and registered for the meeting.
Design of a Two-Phase Flow Facility for Investigation of Droplet Entrainment in Countercurrent Annular Flow
8:05–8:25AM EST
Haonong Du (Rensselaer Polytechnic Institute), Ilyas Yilgor (Rensselaer Polytechnic Institute), Shanbin Shi (Rensselaer Polytechnic Institute)
Paper
Nek5000 Turbulence Model for the Interaction of Parallel Jets
8:25–8:45AM EST
John Acierno (Penn State Univ.), Elia Merzari (Penn State Univ.), Emilio Baglietto (MIT)
High-Spatio-Temporal Measurement of Turbulent Wall Shear Stress in Water
8:45–9:05AM EST
Charles Fort (George Washington Univ.), Philippe M. Bardet (George Washington Univ.)
Experimental Investigation of Two-Phase Natural Circulation and Void Fraction Characteristics with Seawater
9:05–9:25AM EST
Broderick Sieh (Kansas State Univ.), Zayed Ahmed (Kansas State Univ.), Molly Ross (Kansas State Univ.), Steven Eckels (Kansas State Univ.), Hitesh Bindra (Kansas State Univ.)
To join the conversation, you must be logged in and registered for the meeting.