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Onuki, Akira; Akamatsu, Mikio*; Akimoto, Hajime
Nihon Konsoryu Gakkai Dai-5-Kai Oganaizudo Konsoryu Foramu Hobunshu, p.87 - 92, 2001/09
Multi-dimensional analyses have been expected with expanding computation resources for gas-liquid two-phase flow in a complex geometry such as fuel rod bundles. Japan Atomic Energy Research Institute is developing a numerical analytical method for the geometry effect, which is based on three-dimensional two-fluid model. In this study, a general curvilinear coordinate system was introduced to the two-fluid model code ACE-3D and air-water two-phase flow around a circular cylinder was analyzed. The present method predicts an air concentration to vortex regions behind the cylinder and a temporal fluctuation of vortex intensity; these two phenomena have been observed in experiments. It is clarified that the phenomena depend on a relative relationship between the drag force and the inertia of bubbles due to pressure fields.
Utsumi, Takayuki*; Sasaki, Akira; Kunugi, Tomoaki*; Fujii, Sadao*; Akamatsu, Mikio*
Proceedings of 4th International Conference on Supercomputing in Nuclear Applications (SNA 2000) (CD-ROM), 10 Pages, 2000/09
no abstracts in English
Utsumi, Takayuki*; Sasaki, Akira; Kunugi, Tomoaki*; Fujii, Sadao*; Akamatsu, Mikio*
Proceedings of 13th International Conference on High-Power Particle Beams (BEAMS 2000) (CD-ROM), 4 Pages, 2000/00
no abstracts in English
*; Sasaki, Akira; Kunugi, Tomoaki*; *; *
Computational Fluid Dynamics Journal, 8(1), p.128 - 134, 1999/04
no abstracts in English
*; Sasaki, Akira; Kunugi, Tomoaki*; *; *
Inst. Phys. Conf. Ser., (159), p.451 - 454, 1999/00
no abstracts in English
*; Kunugi, Tomoaki*; *; *
Keisan Kogaku Koenkai Rombunshu, 3(1), p.235 - 238, 1998/05
no abstracts in English
*; Kunugi, Tomoaki*; *; Sasaki, Akira; *
CIPUS Annual Report, 4 Pages, 1998/00
no abstracts in English
Fumizawa, Motoo; Kunugi, Tomoaki; Hishida, Makoto; *; Fujii, Sadao*; Igarashi, Minoru*
Nuclear Technology, 110, p.263 - 272, 1995/05
Times Cited Count：4 Percentile：43.23(Nuclear Science & Technology)no abstracts in English
Fujii, Sadao*; *; Fumizawa, Motoo; Kunugi, Tomoaki; Hishida, Makoto
Kashika Joho Gakkai-Shi, 13(SUPPL.1), p.257 - 260, 1993/07
no abstracts in English
Fujii, Sadao*; *; Igarashi, Minoru*; Fumizawa, Motoo; Kunugi, Tomoaki; Hishida, Makoto
Proc. of the 6th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics,Vol. 2, p.1498 - 1505, 1993/00
no abstracts in English
*; Fujii, Sadao*; Fumizawa, Motoo; Kunugi, Tomoaki; Hishida, Makoto
Proc. of the 2nd JSME-KSME Thermal Engineering Conf. Vol. 1, p.1-7 - 1-12, 1992/00
no abstracts in English
