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Conference Spotlight
2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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Latest News
Japan gets new U for enrichment as global power and fuel plans grow
President Trump is in Japan today, with a visit with new Prime Minister Sanae Takaichi on the agenda. Takaichi, who took office just last week as Japan’s first female prime minister, has already spoken in favor of nuclear energy and of accelerating the restart of Japan’s long-shuttered power reactors, as Reuters and others have reported. Much of the uranium to power those reactors will be enriched at Japan’s lone enrichment facility—part of Japan Nuclear Fuel Ltd.’s Rokkasho fuel complex—which accepted its first delivery of fresh uranium hexafluoride (UF₆) in 11 years earlier this month.
Ken Amano, Kotaro Inoue
Nuclear Technology | Volume 65 | Number 3 | June 1984 | Pages 409-414
Technical Paper | Nuclear Safety | doi.org/10.13182/NT84-A33396
Articles are hosted by Taylor and Francis Online.
An analytical model describing pressure fluctuation of turbulent flow in liquid-metal fast breeder reactor (LMFBR) fuel assemblies has been proposed, and the oscillation amplitude of a fuel pin thus caused has been calculated. In the treatment, the statistical model for pressure fluctuation in stable turbulent flow was assumed, and the fluctuation was estimated from pressure loss of flow and velocity gradient. The vibration amplitude was calculated by solving a Langevin equation. According to the comparison of the calculated results with experimental data, this model realistically describes the fuel pin vibration in LMFBR fuel assemblies.
