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Takase, Kazuyuki; Kitamura, Tatsuaki*; Kume, Etsuo; Ichimiya, Koichi*; Komada, Ichiro*
Nihon Kikai Gakkai Kanto Shibu Yamanashi Koenkai (2003) Koen Rombunshu, No.030-4, p.77 - 78, 2003/00
no abstracts in English
Takase, Kazuyuki
Nuclear Technology, 118(2), p.175 - 185, 1997/05
Times Cited Count：5 Percentile：42.84(Nuclear Science & Technology)no abstracts in English
Takase, Kazuyuki
Experimental Thermal and Fluid Science, 13(2), p.142 - 151, 1996/08
Times Cited Count：8 Percentile：49.95(Thermodynamics)no abstracts in English
Takase, Kazuyuki; Akino, Norio
JAERI-Research 96-031, 24 Pages, 1996/06
JAERI-Research-96-031.pdf:0.94MB
no abstracts in English
Fumizawa, Motoo; Hishida, Makoto
Nuclear Technology, 109, p.123 - 131, 1995/01
Times Cited Count：1 Percentile：17.53(Nuclear Science & Technology)no abstracts in English
Takase, Kazuyuki; Akino, Norio
Proc. of the 30th Intersociety Energy Conversion Engineering Conf., 0, P. 95_169, 1995/00
no abstracts in English
Takase, Kazuyuki; Akino, Norio
The 3rd JSME/ASME Joint Int. Conf. on Nuclear Engineering (ICONE),Vol. 1, 0, p.535 - 540, 1995/00
no abstracts in English
Sudo, Yukio
Nihon Kikai Gakkai Rombunshu, B, 60(576), p.2888 - 2894, 1994/08
no abstracts in English
The Japan Society of Multiphase Flow*; Special Committee for Examination of Thermohydraulic Analysis Code based on Three-Fluid Model*
PNC TJ9565 94-001, 530 Pages, 1994/03
The purpose of the present study is to improve a numerical prediction method for multiphase flows based on the three-fluid model. Conducted were (1)improvement of a numerical method, (2)survey and examination on constitutive equations for mass transfer terms in annular-mist flow, (3) survey and verification of constitutive equations for momentum transfer terms, (4)collection of experimental database on steam-water and air-water annular-mist flows and numerical analyses of the database to verify the prediction method, (5)extensivc survey on expelimental techniques for annular-mist flow and (6)examination on the governing equations. As a result, the following conclusions were obtained: (a)multi-fluid modeling for all flow regimes were completed, (b)numerical stability of the three-fluid model was darified, (c)stability-enhanced solution method was developed, (d)ill-posedness of the equation system was revealed, (c)a physically-rational and well-posed multi-fluid model was proposed for dispersed flows, (f)systematic survcy and evaluation of constitutive equations for entrainment and deposition were conducted and summarized, (g)a theoretical method for evaluating film thickness, interfacial shear stress and wall shear stress was presented, and (h)it was confirmed that FIDAS-1DS can accurately predict critical heat fluxes under atmosphelic pressure, and that it can givc qualitatively good predictions concerning film thickness, droplet flow rate and so forth of the air-water annular-mist flow.
The Japan Society of Multiphase Flow*; Special Committee for Examination of Thermohydraulic Analysis Code based on Three-Fluid Model*
PNC TJ9565 93-001, 265 Pages, 1993/04
The purpose of the present study is to improve a numerical method for multiphase flows based on the three-fluid model. Conducted were (1) improvement of a numcrical scheme, (2)examination on the validity of governing equations, (3)survey and verification of available constitutive equations, (4)development of theoretical constitutive equations and (5) numerical analyses of experimental database on steam-water and air-water annular-mist flows. As a result, the following conclusions were obtained: (a)multi-fluid modelling for all flow regimes were completed, (b)numerical stability of the three-fluid model was clarified, (c)stability-enhanced solution method was developed, (d)a physically-rational and well-posed multi-fluid model was proposed for dispersed flows, (e)systematic survey and evaluation of available constitutive equations for entrainment was conducted and summarized, (f)a theoretical method for the evaluation of film thickness and interfacial shear stress was presented, and(g)it was confirmed that FIDAS-1DS can accurately predict critical heat fluxes under atmospheric pressure, and that it can give qualitatively good predictions conserning film thickness, droplet flow rate and so forth of the air-water annular-mist flow.
Fumizawa, Motoo; Hishida, Makoto
Proc. of the 2nd ASME/JSME Nuclear Engineering, p.85 - 92, 1993/00
no abstracts in English
Abe, Yutaka; ; Murao, Yoshio
Journal of Nuclear Science and Technology, 28(3), p.208 - 217, 1991/03
no abstracts in English
Fujii, Sadao*; Akino, Norio; Hishida, Makoto; *; Sanokawa, Konomo
JSME Int. J., Ser. 2, 34(3), p.348 - 354, 1991/00
no abstracts in English
Abe, Yutaka; ; Murao, Yoshio
6th Proc. of Nuclear Thermal Hydraulics, p.401 - 408, 1990/11
no abstracts in English
Abe, Yutaka; ; Murao, Yoshio
Transactions of the American Nuclear Society, 62, p.719 - 720, 1990/11
no abstracts in English
Ogawa, Masuro; Akino, Norio; ; ; ; Emori, Kouichi; Ouchi, Mitsuo; ;
Journal of Nuclear Science and Technology, 24(1), p.75 - 83, 1987/01
Times Cited Count：1 Percentile：19.35(Nuclear Science & Technology)no abstracts in English
;
Nihon Genshiryoku Gakkai-Shi, 28(6), p.524 - 526, 1986/00
Times Cited Count：0 Percentile：0.35(Nuclear Science & Technology)no abstracts in English
; Akino, Norio; *
JAERI-M 83-018, 17 Pages, 1983/02
no abstracts in English
Shibamoto, Yasuteru; Yonomoto, Taisuke
no journal, ,
no abstracts in English
Torikawa, Tomoaki*; Odaira, Naoya*; Ito, Daisuke*; Ito, Kei*; Saito, Yasushi*; Matsushita, Kentaro; Ezure, Toshiki; Tanaka, Masaaki
no journal, ,
On free surface of a sodium cooled fast reactor, gas entrainment can be caused by free surface vortices, which may result in disturbance in core power. It is important to develop an evaluation model to predict accurately entrained gas flow rate. In this study, the effect of pressure gradient in vortex axis direction on the gas entrainment flow rate is investigated in a simple gas experimental apparatus, in which upper and lower tanks are connected by a suction pipe. As a result, it was observed that there are two flow regime: swirling annular flow regime shows the tendency that only the gas entrainment flow rate increases with almost constant pressure gradient, then, when liquid plug is induced by the development of free surface disturbance, the gas entrainment flow rate increases as the pressure gradient increases. In addition, it was confirmed that the transformation of those two flow regimes is advanced by higher liquid level in the upper tank.
