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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Nien-Mien Chung, Wei-Keng Lin, Bau-Shei Pei, Dong-Jye Li, Yih-Yun Hsu†
Nuclear Technology | Volume 99 | Number 2 | August 1992 | Pages 258-267
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT92-A34696
Articles are hosted by Taylor and Francis Online.
Wave propagation of low-void-fraction, two-phase bubbly flow is analyzed from the compressibility of a bubble and an assumption of homogeneity for steam bubbles. The phase velocity and attenuation calculated from the model are strongly dependent on frequency. The equilibrium sound velocity is derived for the limiting case as frequency approaches zero. The second resonance of a vapor bubble is also discussed. In addition, the void fraction, bubble size, and noncondens-able gas effects are also analyzed in the model. The relationship between sound velocity and interfacial area density is derived, and a new method to measure interfacial area is proposed.
