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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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Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
Masahiko Arai
Nuclear Science and Engineering | Volume 74 | Number 2 | May 1980 | Pages 77-83
Technical Paper | doi.org/10.13182/NSE80-A19624
Articles are hosted by Taylor and Francis Online.
One-dimensional two-phase flow equations, describing mass and momentum equations for two phases, are used to analyze viscous term contributions to stability problems concerning two-phase flow equation systems. When viscous terms are taken into account, characteristics of the system become real. This paper shows that viscous terms stabilize disturbances, if the ratio of the system's dimension to the wavelength is sufficiently larger than the Reynolds numbers for the two phases. Some examples show that this result holds, when differential terms are added. An example of stable systems for any wavelength perturbations is given by adding a simple wall shear-like stress term. These results are obtained by the use of a linear stability analysis.
