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高速炉上部プレナム温度成層化現象の解析評価手法の整備,2; 軸対称体系下ナトリウム試験の解析

Development of simulation method for thermal stratification in upper plenum of fast reactors, 2; Analysis of sodium experiment in axis-symmetric geometry

大野 修司  ; 大島 宏之; 菅原 章博*; 大木 裕*

Ohno, Shuji; Ohshima, Hiroyuki; Sugahara, Akihiro*; Oki, Hiroshi*

ナトリウム冷却大型高速炉の炉内熱流動に関する解析評価手法整備の一環として、商用コードによる軸対称体系下におけるナトリウム試験の解析を行い、RANS型乱流モデルの違いが上部プレナム温度成層化現象の予測性へ与える影響を調べた。

Validation study on numerical simulation method has been in progress for evaluating thermal-hydraulic behavior in an upper plenum region of advanced sodium-cooled fast reactors. The present study investigates the applicability of the RANS-type turbulence models to the evaluation of fundamental thermal stratification behavior using a commercial CFD code and the existing sodium experiment data.

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