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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Reimagining nuclear materials for the future of medicine
Nuclear medicine has come a long way since Henri Becquerel first observed the penetrating energy of radioactive materials in 1896. Today, technetium-99m alone is used in more than 40 million diagnostic procedures every year—from cardiovascular imaging and bone scans to cancer detection—making it the undisputed workhorse of nuclear medicine. That single statistic tells you something important: An enormous portion of modern diagnostic medicine rests on a surprisingly narrow foundation, one built around a small number of aging research reactors that were never originally designed for continuous isotope production.
Advances in Thermal Hydraulics (ATH 2022)
Technical Session
Tuesday, June 14, 2022|10:15AM–12:00PM PDT|Manhattan
Session Chair:
Igor A. Bolotnov
Alternate Chair:
Arsen Iskhakov
Session Organizer:
Elia Merzari
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Direct Numerical Simulation of Low and Unitary Prandtl Number Fluids in Reactor Downcomer Geometry
Cheng-Kai Tai (NCSU), Tri Nguyen (Penn State), Arsen S. Iskhakov (NCSU), Elia Merzari (Penn State), Nam Dinh (NCSU), Igor A. Bolotnov (NCSU)
Paper
Direct Numerical Simulation of High Prandtl Number Fluid Flow in the Downcomer of an Advanced Reactor
Tri Nguyen (Penn State), Elia Merzari (Penn State), Cheng-Kai Tai (NCSU), Igor A. Bolotnov (NCSU)
Assessing Engineering Turbulence Models in Buoyant, Non-Unity Prandtl Flow
Ralph Wiser (MIT), Emilio Baglietto (MIT), Cheng-Kai Tai (NCSU), Igor A. Bolotnov (NCSU), Tri Nguyen (Penn State), Elia Merzari (Penn State)
Quantifying Model Error in Diabatic Turbulent Flow
Ralph Wiser (MIT), Emilio Baglietto (MIT)