On the velocity and frequency of disturbance waves in vertical annular flow with different surface tension and gas-liquid density ratio

Zhang, H.*; Umehara, Yutaro*; Yoshida, Hiroyuki; Mori, Shoji*

International Journal of Heat and Mass Transfer, 211, p.124253_1 - 124253_13, 2023/09

https://doi.org/10.1016/j.ijheatmasstransfer.2023.124253

Large-scale direct simulation of two-phase flow structure around a spacer in a tight-lattice nuclear fuel bundle

Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*; Akimoto, Hajime

Computational Fluid Dynamics 2004, p.649 - 654, 2006/00

no abstracts in English

Corrosion behavior of austenitic and ferritic/martensitic steels in oxygen-saturated liquid Pb-Bi eutectic at 450C and 550C

Kurata, Yuji; Futakawa, Masatoshi; Saito, Shigeru

JAERI-Research 2005-002, 37 Pages, 2005/02

JAERI-Research-2005-002.pdf:20.04MB

Static corrosion tests of various austenitic and ferritic/martensitic steels were conducted in oxygen-saturated liquid Pb-Bi at 450C and 550C for 3000h to study the effects of temperature and alloying elements on corrosion behavior. Oxidation, grain boundary corrosion, dissolution and penetration were observed. The corrosion depth decreases at 450C with increasing Cr content in steels regardless of ferritic/martensitic or austenitic steels. Appreciable dissolution of Ni and Cr does not occur in the three austenitic steels at 450C. The corrosion depth of ferritic/martensitic steels also decreases at 550C with increasing Cr content whereas the corrosion depth of austenitic steels, JPCA and 316ss becomes larger due to ferritization caused by dissolution of Ni at 550C than that of ferritic/martensitic steels. An austenitic stainless steel containing about 5%Si exhibits fine corrosion resistance at 550C because the protective Si oxide film is formed and prevents dissolution of Ni and Cr.

Research on the fundamental process of thermal-hydraulic behaviors in severe accident; Behavior of fine droplet flow, JAERI's nuclear research promotion program, H10-027-7 (Contract research)

Kataoka, Isao*; Matsuura, Keizo*; Yoshida, Kenji*

JAERI-Tech 2002-015, 83 Pages, 2002/03

JAERI-Tech-2002-015.pdf:3.62MB

no abstracts in English

Research on the fundamental process of thermal-hydraulic behaviors in severe accident; Vapor film collapse behavior on high temperature particle surface, JAERI's nuclear research promotion program, H10-027-3 (Contract research)

Abe, Yutaka*

JAERI-Tech 2002-011, 70 Pages, 2002/03

JAERI-Tech-2002-011.pdf:5.62MB

no abstracts in English

Roll wave effects on annular condensing heat transfer in horizontal PCCS condenser tube

Kondo, Masaya; Nakamura, Hideo; Anoda, Yoshinari; Saishu, Sadanori*; Obata, Hiroyuki*; Shimada, Rumi*; Kawamura, Shinichi*

Proceedings of 10th International Conference on Nuclear Engineering (ICONE 10) (CD-ROM), 9 Pages, 2002/00

no abstracts in English

Study on flooding in two-phase flow

*; Yagi, Junji*; Kumamaru, Hiroshige

JAERI-M 93-199, 48 Pages, 1993/10

JAERI-M-93-199.pdf:1.26MB

no abstracts in English

Study of Transient Burnout under Flow Reduction Condition

JAERI-M 86-135, 89 Pages, 1986/09

JAERI-M-86-135.pdf:2.43MB

no abstracts in English

Flooding and flow reversal of two-phase annular flow

Asahi, Yoshiro

Nucl.Eng.Des., 47(2), p.251 - 256, 1978/02

https://doi.org/10.1016/0029-5493(78)90067-5

no abstracts in English