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Dehbi, A.*; Cheng, X.*; Liao, Y.*; Okagaki, Yuria; Pellegrini, M.*
Proceedings of 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-19) (Internet), 15 Pages, 2022/03
Peri
ez, R.*; Brovchenko, I.*; Duffa, C.*; Jung, K.-T.*; Kobayashi, Takuya; Lamego, F.*; Maderich, V.*; Min, B.-I.*; Nies, H.*; Osvath, I.*; et al.
Journal of Environmental Radioactivity, 150, p.247 - 269, 2015/12
Times Cited Count：33 Percentile：69.96(Environmental Sciences)A detailed intercomparison of marine dispersion models applied to the releases from Fukushima Dai-ichi Nuclear Power Plant has been carried out in the frame of MODARIA program, of the IAEA. Models have been compared in such a way that the reasons of the discrepancies between them can be assessed. The overall idea is to harmonize models, making them run with the same forcing in a step-by-step procedure, in such a way that the main agent in producing discrepancy between models can be found. It has been found that the main reason of discrepancies between models is due to the description of the hydrodynamics. However, once this has been suppressed, some variability between model outputs remains due to intrinsic differences between models. The numerical experiments have been carried out for a perfectly conservative radionuclide and for 
Cs. Model outputs for this radionuclide have also been compared with measurements in water and sediments.
n waves in tokamaksBierwage, A.; Shinohara, Koji
Physics of Plasmas, 21(11), p.112116_1 - 112116_21, 2014/11
Times Cited Count：23 Percentile：72.13(Physics, Fluids & Plasmas)Furukawa, Masaru; Tokuda, Shinji
Journal of Plasma and Fusion Research SERIES, Vol.6, p.210 - 213, 2004/00
A model equation for ballooning modes in toroidally rotating tokamaks is derived. It is confirmed that the model equation is appropriate for analyzing the stabilization mechanism of the ballooning modes by comparing the numerical solutions of the model equation with those of the original ballooning equations.
Watanabe, Shoichi; Yamane, Yuichi; Miyoshi, Yoshinori
JAERI-Tech 2003-045, 73 Pages, 2003/03
JAERI-Tech-2003-045.pdf:4.96MB
Since exact information is not always acquired in the criticality accident of fuel-solution, parametric survey calculations are required for grasping behaviors of the thermal-hydraulics. On the other hand, the practical methods of the calculation which can reduce the computation time with allowable accuracy will be also required, since the conventional method takes a long calculation time. In order to fulfill the requirement, a three-dimensional nuclear-kinetics analysis code considering thermal-hydraulic based on the multi-region kinetic equations with one-group neutron energy was created by incorporating the thermal-hydraulics analysis code PHOENICS as a subroutine. The computation time of the code was shortened by separating time mesh intervals of the nuclear- and heat-calculations from that of the hydraulics calculation, and by regulating automatically the time mesh intervals in proportion to power change rate. A series of analysis were performed for the natural-cooling characteristic test using TRACY in which the power changed slowly for 5 hours after the transient power resulting from the reactivity insertion of a 0.5 dollar. It was found that the code system was able to calculate within the limit of practical time, and acquired the prospect of reproducing the experimental values considerably for the power and temperature change.
*; Kunugi, Tomoaki*; *; Sasaki, Akira; *
CIPUS Annual Report, 4 Pages, 1998/00
no abstracts in English
*; Kunugi, Tomoaki
Comput. Model. Simul. Eng., 1(4), p.452 - 476, 1996/11
no abstracts in English
Kunugi, Tomoaki; *; *
Dai-32-Kai Nihon Dennetsu Shimpojiumu Koen Rombunshu, 0, p.565 - 566, 1995/05
no abstracts in English
Akiba, Masato; R.D.Watson*
Atomic and Plasma-Material Interaction Processes in Controlled Thermonuclear Fusion, p.455 - 480, 1993/00
no abstracts in English
Maeda, Mitsuru; Fujine, Sachio; Uchiyama, Gunzo; *; *; ; *; *
Solvent Extraction in the Process Industries, Vol. 3, p.1517 - 1523, 1993/00
no abstracts in English
Maeda, Mitsuru; Fujine, Sachio; *; *
Transactions of the American Nuclear Society, 66, p.78 - 80, 1992/11
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; ; Murao, Yoshio
JAERI-M 91-227, 89 Pages, 1992/01
no abstracts in English
Tanzawa, Sadamitsu; ;
JAERI-M 91-215, 40 Pages, 1992/01
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; Iwamura, Takamichi; ; Onuki, Akira; Abe, Yutaka; *; Adachi, Hiromichi; Murao, Yoshio
JAERI-M 90-046, 114 Pages, 1990/03
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; Iwamura, Takamichi; ; Onuki, Akira; Abe, Yutaka; *; Adachi, Hiromichi; Murao, Yoshio
JAERI-M 90-036, 120 Pages, 1990/03
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; Iwamura, Takamichi; ; Onuki, Akira; Abe, Yutaka; *; *; Adachi, Hiromichi; Murao, Yoshio
JAERI-M 90-035, 143 Pages, 1990/03
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; Sugimoto, Jun; ; Murao, Yoshio
JAERI-M 89-227, 96 Pages, 1990/01
no abstracts in English
Fujine, Sachio; M.Kluth*; J.Lamla*; H.Goldacker*
Proc. of the Symp. on Solvent Extraction 1989, p.141 - 146, 1989/00
no abstracts in English
Murao, Yoshio
Genshiryoku Kogyo, 32(9), p.25 - 27, 1986/00
no abstracts in English
; ; *; ; ; Murao, Yoshio
JAERI-M 85-026, 89 Pages, 1985/03
no abstracts in English
