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JAEA Reports

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.

JAEA Reports

None

; *; *; *; *; *; *; *

PNC-TN8470 95-003, 240 Pages, 1995/01

PNC-TN8470-95-003.pdf:43.11MB

no abstracts in English

JAEA Reports

None

;

PNC-TN8420 94-026, 67 Pages, 1994/08

PNC-TN8420-94-026.pdf:2.47MB

None

JAEA Reports

None

; ; ;

PNC-TN9420 94-015, 80 Pages, 1994/07

PNC-TN9420-94-015.pdf:2.92MB

None

JAEA Reports

None

; ; ; ; ; Terunuma, Seiichi

PNC-TN9420 94-011, 154 Pages, 1994/03

PNC-TN9420-94-011.pdf:3.5MB

None

JAEA Reports

None

; ; ; ;

PNC-TN8410 92-074, 133 Pages, 1992/04

PNC-TN8410-92-074.pdf:3.8MB

None

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