Resistance and Fluctuating Pressures of a Large Elbow in High Reynolds Numbers
Resistance and Fluctuating Pressures of a Large Elbow in High Reynolds Numbers
复制标题
高雷诺数大弯头的阻力和脉动压力
DOI：
10.1115/1.2236126
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发表时间：
2006
影响因子：
2
通讯作者：
T. Fujii
中科院分区：
文献类型：
--
作者：
T. Shiraishi;Hisato Watakabe;H. Sago;M. Konomura;A. Yamaguchi;T. Fujii
对日本原子能机构钠冷快堆热段脉动压力进行了1/3缩尺模型试验研究。总阻力系数与已发表的数据一致，此外，我们的研究给出了雷诺数为8.0×106的数据。流动显示和速度测量证实了流动对雷诺数的独立性。对管壁压力进行了统计分析，预测了热管段的脉动压力特性。结果表明，脉动压力的产生主要发生在流动分离和再附着的边界上。
For the Japan Atomic Energy Agency sodium-cooled fast reactor, an experimental study on the fluctuating pressure of the hot legs was carried out with tests in a 1/3-scale model. The total resistance coefficient is consistent with published data, and, additionally, our research has given data up to the Reynolds number of 8.0×106. The flow visualization and velocity measurement confirmed the independence of the flow on the Reynolds number. Pressures on the pipe wall were statistically examined to predict the characteristics of fluctuating pressures of the hot legs. It reveals that generation of fluctuating pressure is dominant on the boundary of flow separation and reattachment.