Wall Shear Stress in a Model of 3 center dot 3 Rod Bundle

Kashinskii O. N.; Vorobyev M. A.

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Wall Shear Stress in a Model of 3 center dot 3 Rod Bundle

机译：3中心点3杆捆绑模型中的墙剪应力

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The paper presents results of experimental study of an upward flow in a vertical rod bundle consisting of nine rods arranged in a square. Spacing grids were used to keep the bundle geometry. The experiments were performed in single-phase and bubbly flows using an electrochemical technique. A local wall shear stress probe was mounted in the central rod. The dependence of the local wall shear stress on the distance from the grid was measured for two angular positions of the central rod. The wall shear stress fluctuations were also measured. The effect of gas phase void fraction on the flow parameters was studied.

机译：本文介绍了垂直杆束中向上流动的实验研究结果，垂直杆束由九根呈正方形排列的杆组成。间距网格用于保持束的几何图形。利用电化学技术在单相和泡状流中进行了实验。在中心杆上安装了一个局部壁剪应力探针。对于中心杆的两个角位置，测量了局部壁面剪应力与距网格距离的关系。还测量了壁面剪应力波动。研究了气相含气率对流动参数的影响。

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《Journal of engineering thermophysics》 |2020年第3期|共5页
作者
Kashinskii O. N.; Vorobyev M. A.;
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Russian Acad Sci Siberian Branch Kutateladze Inst Thermophys Pr Akad Lavrenteva 1 Novosibirsk 630090 Russia;

Russian Acad Sci Siberian Branch Kutateladze Inst Thermophys Pr Akad Lavrenteva 1 Novosibirsk 630090 Russia;

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中图分类热力工程、热机;
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3. Accurate prediction of the wall shear stress in rod bundles with the spectral element method at high Reynolds numbers [J] . Justin Walker, Elia Merzari, Aleksandr Obabko, International Journal of Heat and Fluid Flow . 2014,第deca期

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Wall Shear Stress in a Model of 3 center dot 3 Rod Bundle

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