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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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Latest News
Canada clears Darlington to produce Lu-177 and Y-90
The Canadian Nuclear Safety Commission has amended Ontario Power Generation’s power reactor operating license for Darlington nuclear power plant to authorize the production of the medical radioisotopes lutetium-177 and yttrium-90.
James P. Blanchard, Qiyang Hu, Nasr Ghoniem
Fusion Science and Technology | Volume 56 | Number 1 | July 2009 | Pages 341-345
High Average Power Laser and Other IFE R&D | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 1) | doi.org/10.13182/FST09-A8925
Articles are hosted by Taylor and Francis Online.
Dry wall laser IFE chambers will experience large, transient heat and particle fluxes as the target yield products reach the wall. These threats, consisting of x-rays, ions, and neutrons, can lead to wall failure caused by transient stresses or as a result of deposited ions in the near-surface layer. We have developed a unified model for the calculation of temperatures, stresses, strains, and fracture behavior in a solid IFE chamber wall. The model is also coupled with ion transport sub-models that assess the effects of ions on the morphology of the wall materials. This paper describes the models incorporated into the new unified simulation and, in particular, presents new fracture models that permit fracture calculations without the need for an advanced finite element calculation. This fracture model assumes that an array of surface cracks is present in the wall surface and uses superposition to calculate the stress intensity factor via a numerical integration of the stress profile computed for an un-cracked geometry. We also describe approaches for computing the stresses due to inertial effects resulting from the rapid heating associated with the IFE threats. In some cases, these inertial effects lead to stress waves that can lead to premature wall damage and must be accounted for in the analysis. This model is based on semi-analytical solutions for stress waves due to shallow heating in a relatively thick solid. The combined thermomechanical model gives us detailed understanding of the fundamental mechanics of rapidly heated surfaces.