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Experimental Study on Temperature Fluctuation near Wall for Evaluation of Thermal Striping

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上出 英樹 ; 木村 暢之; 五十嵐 実; 林 謙二

Kamide, Hideki; Kimura, Nobuyuki; Igarashi, Minoru; Hayashi, Kenji

サーマルストライピングの熱流動について、水ならびにナトリウムを用いた実験研究を行った。壁に沿う平行3噴流体系、T字合流配管を対象に温度測定、流速場測定を行い、壁近傍での温度変動強度の減衰特性を明らかにした。また、DINUS3コードを用いた実験解析により、解析手法の有効性を明らかにした。

Experimental Study was carried out for evaluation of thermal hydraulics of thermal striping. Parallel-triple jet along a wall and mixing tee experiments and experimenatl analyses using DINUS-3 code were performed. Decay of fluctuation intensity near the wall was found. Calculated results of temperature and velocity fields were in good agreement with experimental data.

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