Development and validation of Multi-DimensionaI sodium combustion analysis code AQUA-SF

Takata, Takashi; Yamaguchi, Akira

JNC TN9400 2000-065, 152 Pages, 2000/06

JNC-TN9400-2000-065.pdf:6.26MB
JNC-TN9400-2000-065(errata).pdf:0.12MB

ln the liquid metal fast reactor (LMFR) using liquid sodium as a coolant, it is important to evaluate the effect of the sodium combustion on the structure, etc. Most of the previous analytical works are based on a zone model, in which the principal variables are treated as volume-average quantities. Therefore spatial distribution of gas and structure temperatures, chemical species concentration are neglected. Therefore, a multi-dimensional sodium combustion analysis code AQUA-SF (Advanced simulation using Quadratic Upstream differencing Algorithm - Sodium Fire version) has been developed for the purpose of analyzing the sodium combustion phenomenon considering the multi-dimensional effect. This code is based on a multi-dimensional thermal hydraulics code AQUA that employs SIMPLEST-ANL method. Sodium combustion models are coupled with AQUA; one is a liquid droplet model for spray combustion, and the other is a flame sheet model for pool combustion. A gas radiation model is added for radiation heat transfer. Some other models necessary for the sodium combustion analysis, such as a chemical species transfer, a compressibility, are also added. ln AQUA-SF code, bounded QUICK method in space scheme and bounded three-point implicit method in time scheme are implemented. Verification analyses of sodium combustion tests shown in the following have been carried out. (1)pool combustion test (RUN-D1) (2)spray combustion test (RUN-E1) (3)sodium leakage combustion test (Sodium Fire Test-II) (4)smaII-scale leakage combustion test (RUN,F7-1) ln each verification analysis, good agreements are obtained and the validity of AQUA-SF code is confirmed.

Development of remote handling tools and equipment

Nakahira, Masataka; Oka, Kiyoshi; *; *; *; Oda, Yasushi*; Kajiura, Soji*; Yamazaki, Seiichiro*; *

Purazuma, Kaku Yugo Gakkai-Shi, 73(1), p.54 - 68, 1997/01

https://ci.nii.ac.jp/naid/110003827427

no abstracts in English

Numerical simulation on the Marangoni convection in the molten metal pool

Yokokawa, Mitsuo

JAERI-M 92-038, 69 Pages, 1992/03

JAERI-M-92-038.pdf:1.48MB

no abstracts in English

Compacting and element-quick-replaceable design of high power density fusion reactor

*; *; *; Okamoto, Yoshizo*; Hoshiya, Taiji; Takahashi, Akito*; *; *; *; *; et al.

Koshutsuryoku Mitsudo Kaku Yugoro Niokeru Yoso Kokan Gijutsu No Kiso Sekkei, 147 Pages, 1988/03

no abstracts in English

In situ observation of uranyl solution photoreduction reaction

Shiwaku, Hideaki; Kobayashi, Toru; Suzuki, Shinichi; Yaita, Tsuyoshi

no journal, , 

no abstracts in English