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Na冷却高速炉における大口径配管の流力振動評価に関する研究,2; ホットレグ1/3縮尺試験における超臨界Re数領域での圧力変動特性と流動状況

Study on flow-induced-vibration evaluation of large-diameter pipings in a sodium-cooled fast reactor, 2; Pressure fluctuation and flow pattern of the 1/3-scaled test of the hot leg in the postcritical Reynolds regime

白石 直*; 佐郷 ひろみ*; 渡壁 寿人*; 山野 秀将   ; 小竹 庄司

Shiraishi, Tadashi*; Sago, Hiromi*; Watakabe, Hisato*; Yamano, Hidemasa; Kotake, Shoji

超臨界Re数領域でホットレグ配管の圧力変動と流況に対する粘性の影響を調べる目的で行った常温水と60$$^{circ}$$C温水を使った試験結果を報告する。

This paper reports test results with room-temperature and hot (60 $$^{circ}$$C) water in order to investigate the effect of coolant viscosity on flow dynamics and pressure fluctuations of a hot-leg piping in the post critical Reynolds number regime.

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