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Ogiwara, Norio; Hikichi, Yusuke*; Kamiya, Junichiro; Kinsho, Michikazu; Yoshida, Hajime*; Arai, Kenta*
Journal of the Vacuum Society of Japan, 60(12), p.475 - 480, 2017/12
Fumizawa, Motoo; Tanaka, Gaku*; Zhao, H.*; Hishida, Makoto*; Shiina, Yasuaki
Nihon Genshiryoku Gakkai Wabun Rombunshi, 3(4), p.313 - 322, 2004/12
This paper deals with a computer simulation of a helium-air counter flow in a rectangular channel. The inclination angle is varied from 0
(horizontal) to 90(vertical). Velocity profiles and concentration profiles are calculated with a computer program VSOP sub-module. Following main features of the counter flow are discussed. (1) Time required to establish a quasi-steady state counter flow. (2) The relationship between the inclination angle and the flow patterns of the counter flow (3) The developing process of velocity profiles and concentration profiles (4) The relationship between the inclination angle of the channel and the velocity profiles of upwards flow and the downwards flow (5) The relationship between the concentration profile and the inclination angle (6) The relationship between the net in-flow rate and the inclination angle We compared the computed velocity profile and the net in-flow rate with experimental data. A good agreement is obtained between the calculation and the experiment.
Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*; Tamai, Hidesada
JSME International Journal, Series B, 47(2), p.323 - 331, 2004/05
no abstracts in English
Kaminaga, Masanori; Kinoshita, Hidetaka; Haga, Katsuhiro; Hino, Ryutaro; Sudo, Yukio
Proceedings of International Workshop on Current Status and Future Directions in Boiling Heat Transfer and Two-Phase Flow, p.135 - 141, 2000/00
no abstracts in English
Kaminaga, Masanori; Yamamoto, Kazuyoshi; Sudo, Yukio
Journal of Nuclear Science and Technology, 35(12), p.943 - 951, 1998/12
Times Cited Count：13 Percentile：72.4(Nuclear Science & Technology)no abstracts in English
L.Zheng*; Iguchi, Tadashi; Kureta, Masatoshi; Akimoto, Hajime
JAERI-Research 97-054, 85 Pages, 1997/08
JAERI-Research-97-054.pdf:2.18MB
no abstracts in English
Kaminaga, Masanori; Yamamoto, Kazuyoshi; Sudo, Yukio
Proceedings of 8th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics (NURETH-8), Vo.3, p.1815 - 1822, 1997/00
In research reactors, plate-type fuel elements are generally adopted so as to produce high power densities and are cooled by a downward flow. A core flow reversal from a steady-state forced downward flow to an upward flow due to natural convection should occur during operational transients such as "Loss of the primary coolant flow". Therefore, in the thermal hydraulic design of research reactors, critical heat flux (CHF) under a counter-current flow limitation (CCFL) or a flooding condition are important to determine safety margins of fuel against CHF during a core flow reversal. The authors have proposed a CHF correlation scheme for the thermal hydraulic design of research reactors, based on CHF experiments for both upward and downward flows including CCFL condition. When the CHF correlation scheme was proposed, a subcooling effect for CHF correlation under CCFL condition had not been considered because of a conservative evaluation and a lack of enough CHF data to determine the subcooling effect on CHF. A too conservative evaluation is not appropriate for the design of research reactors because of construction costs etc. Also, conservativeness of the design must be determined precisely. In this study, therefore, the subcooling effect on CHF under the CCFL conditions in vertical rectangular channels heated from both sides were investigated quantitatively based on CHF experimental results obtained under uniform and nonuniform heat flux condition. As a result, it was made clear that CHF in this region increase linearly with an increase of the channel inlet subcooling and a new CHF correlation including the effect of channel inlet subcooling was proposed.
Takase, Kazuyuki; M.Z.Hasan*
16th IEEE/NPSS Symp. on Fusion Engineering (SOFE '95), 2, p.1538 - 1541, 1995/00
no abstracts in English
Kaminaga, Masanori; Sudo, Yukio
Nihon Kikai Gakkai Rombunshu, B, 58(553), p.2799 - 2804, 1993/09
no abstracts in English
Sudo, Yukio; Kaminaga, Masanori
J. Heat Transfer, 115, p.426 - 434, 1993/05
Times Cited Count：34 Percentile：87.24(Thermodynamics)no abstracts in English
; ; Kaminaga, Masanori; Ishitsuka, Etsuo; ; Sudo, Yukio; Saito, Minoru;
JAERI-M 92-097, 61 Pages, 1992/07
no abstracts in English
Kaminaga, Masanori; Sudo, Yukio; Murayama, Yoji; *
Heat Transfer-Jpn. Res., 20(1), p.72 - 85, 1991/03
no abstracts in English
Sudo, Yukio; *; Kaminaga, Masanori
JSME Int. J., Ser. 2, 34(2), p.169 - 174, 1991/00
no abstracts in English
Kaminaga, Masanori; Sudo, Yukio
Proc. of the 1st JSME/ASME Joint Int. Conf. on Nuclear Engineering,Vol. 1, p.73 - 79, 1991/00
no abstracts in English
Sudo, Yukio; *; Kaminaga, Masanori
JSME Int. J., Ser. II, 33(4), p.743 - 748, 1990/00
no abstracts in English
Sudo, Yukio; *; ; ; Kaminaga, Masanori
JAERI-M 85-126, 95 Pages, 1985/09
no abstracts in English
Sudo, Yukio; *; ; Kaminaga, Masanori
Journal of Nuclear Science and Technology, 23(1), p.73 - 82, 1985/00
Times Cited Count：31 Percentile：92.89(Nuclear Science & Technology)no abstracts in English
Sudo, Yukio; *; ; Kaminaga, Masanori;
Journal of Nuclear Science and Technology, 22(8), p.604 - 618, 1985/00
Times Cited Count：50 Percentile：97.37(Nuclear Science & Technology)no abstracts in English
