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Journal Articles

Experimental study on local interfacial parameters in upward air-water bubbly flow in a vertical 6$$times$$6 rod bundle

Han, X.*; Shen, X.*; Yamamoto, Toshihiro*; Nakajima, Ken*; Sun, Haomin; Hibiki, Takashi*

International Journal of Heat and Mass Transfer, 144, p.118696_1 - 118696_19, 2019/12

 Times Cited Count:39 Percentile:83.87(Thermodynamics)

Journal Articles

Wave propagation properties of framed structures based on the Timoshenko beam theory

Miyazaki, Akemi

Kozo Kogaku Rombunshu, B, 52B, p.119 - 124, 2006/03

Since it is generally difficult to predict the occurrence of natural disasters such as earthquakes, a performance management system that always maintains the safety and functionalities of structures is required, especially for critical ones like nuclear power plants. In order to realize such a system, it is becoming important to carry out modeling procedures and analyses in detail to better understand the real phenomena. Such details are important in understanding the phenomena occurring in frame structures such as piping systems which are considered to be one of the vulnerable parts in nuclear power plants. The aim of our research is to solve the dynamic behavior of piping systems in nuclear power plants which are complicated assemblages of parts. The spectral element method is adopted in this work and the formulation considering a shear deformation of a frame element is described. The Timoshenko beam theory is introduced for the purpose of this formulation. The validity of the presented element will be shown through comparisons made with the conventional beam.

Journal Articles

Wave propagation properties of frame structures; Formulation for three dimensional frame structures

Miyazaki, Akemi

Proceedings of 13th International Conference on Nuclear Engineering (ICONE-13) (CD-ROM), 6 Pages, 2005/05

Since it is generally difficult to predict the occurrence of the natural disasters such as earthquakes, a performance management system that always maintains the safety of the structures is required, especially for the critical ones like the nuclear power plants. To realize such a system, it is becoming important to carry out modeling procedures and analyses in detail to capture the real phenomena. Such details are important in understanding the phenomena occurring in the frame structures such as piping systems which are considered to be one of the most weakest and vulnerable parts in the nuclear power plants. The aim of our research is to solve the dynamic behavior, especially the wave propagation phenomena for the piping systems in the nuclear power. The spectral element method is adopted in this work and the formulation considering a shear deformation of a frame element is described. Timoshenko beam theory is introduced for the purpose of this formulation. The validity of the presented element will be shown through the comparisons made with the conventional beam element.

Journal Articles

Visualization and measurements of liquid phase velocity and void fraction of gas-liquid metal two-phase flow by using neutron radiography

Saito, Yasushi*; Hibiki, Takashi*; Mishima, Kaichiro*; Tobita, Y.*; Suzuki, Toru*; Matsubayashi, Masahito

Proceedings of 9th International Symposium on Flow Visualization, p.391_1 - 391_10, 2000/00

no abstracts in English

Journal Articles

Experimental study on scale effect of flow path against phase distribution of bubbly flow in a vertical pipe

Onuki, Akira; ; Akimoto, Hajime

Konsoryu Shimpojiumu '98 Koen Rombunshu, p.221 - 222, 1998/00

no abstracts in English

Journal Articles

An Experimental study on interfacial friction in wavy-stratified two-phase flow in a horizontal rectangular duct

; Tsuji, Yoshiyuki*; ; Nakamura, Hideo; ; Kukita, Yutaka

Nihon Genshiryoku Gakkai-Shi, 39(8), p.669 - 680, 1997/00

 Times Cited Count:0 Percentile:0.00(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Wavelet analysis of two-phase flow in a forizontal duct

; Anoda, Yoshinari; Kukita, Yutaka

Proc. of 2nd Int. Conf. on Multiphase Flow (ICMF)95-KYOTO,Vol. 2, 0, p.P1_97 - P1_102, 1995/00

no abstracts in English

Journal Articles

Application of electromagnetic velocity meter for measuring liquid velocity distribution in air-water two-phase flow along a large vertical pipe

Onuki, Akira;

Proc. of ASME Heat Transfer and Fluids Engineering Divisions (HTD-Vol. 321,FED-Vol. 233), 0, p.473 - 478, 1995/00

no abstracts in English

Journal Articles

Flow pattern and its transition in gas-liquid two-phase flow along a large vertical pipe

Onuki, Akira; ; Sudo, Yukio

Proc. of the 2nd Int. Conf. on Multiphase Flow 95-Kyoto, 0, p.FT1.17 - FT1.23, 1995/00

no abstracts in English

Journal Articles

Analysis of two-phase flow in a horizontal duct by wavelet trasnform

; Anoda, Yoshinari; Kukita, Yutaka

Nihon kikai Gakkai Dai-72-Ki Zenkoku Taikai Koen Rombunshu, Vol.II, 0, 3 Pages, 1994/00

no abstracts in English

Journal Articles

Experimental study of counter-current two-phase flow in horizontal tube connected to inclined riser

Journal of Nuclear Science and Technology, 23(3), p.219 - 232, 1986/00

no abstracts in English

Journal Articles

Extended semicircle and semi-ellipse theorems for the heterogeneous swirling flow of an incompressible fluid

Journal of the Physical Society of Japan, 54(5), p.1769 - 1781, 1985/00

 Times Cited Count:0 Percentile:0.00(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Parameter effects on downcomer penetration of ECC water in a PWR-LOCA

Sudo, Yukio

Journal of Nuclear Science and Technology, 21(1), p.32 - 41, 1984/00

 Times Cited Count:2 Percentile:29.47(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Semi-ellipse theorem for the heterogeneous swirling flow in an azimuthal magnetic field with respect to axisymmetric disturbances

Journal of the Physical Society of Japan, 53(6), p.2012 - 2017, 1984/00

 Times Cited Count:7 Percentile:59.27(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Burnout characteristics under flow reduction condition

;

Journal of Nuclear Science and Technology, 19(6), p.438 - 448, 1982/00

 Times Cited Count:9 Percentile:68.13(Nuclear Science & Technology)

no abstracts in English

Journal Articles

17 (Records 1-17 displayed on this page)
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