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首页> 外文期刊>International Journal of Heat and Mass Transfer >Statistical assessment of experimental observation on the slug body length and slug translational velocity in a horizontal pipe
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Statistical assessment of experimental observation on the slug body length and slug translational velocity in a horizontal pipe

机译：对水平管中段塞长度和段塞平移速度的实验观察的统计评估

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摘要

In the present paper, the flow was examined experimentally using air and water as the working fluids. Various sets of experimental data were conducted by varying the superficial velocities within ranges of 0.7-3.84 m/s and 0.7-1.33 m/s for air and water, respectively. The slug characteristics were acquired and computed using non-intrusive optical based technique. Statistical analysis for the translational slug velocity and slug body length was conducted. It was observed that for fixed water velocity, the slug length was increasing with increasing the superficial air velocity while the slug frequency decreased. However, for fixed superficial air velocity, the slug length was decreasing with increasing the water velocity whiles the slug frequency increased. Also, it was found that when the superficial water velocity increased the slugs were formed and initiated far downstream from the pipe inlet section. Furthermore, the obtained results were found in a good agreement with the previous empirical correlation.
机译：在本文中，使用空气和水作为工作流体进行了实验检查。通过在空气和水分别在0.7-3.84 m / s和0.7-1.33 m / s的范围内改变表面速度来进行各种实验数据集。使用基于非侵入式光学的技术获取并计算弹头特性。对弹头速度和弹头长度进行统计分析。可以看出，在固定水速下，随着表面风速的增加，段塞长度增加，而段塞频率降低。然而，对于固定的表观空气速度，当水的流速增加时，水流的塞长随着水流速的增加而减小。另外，还发现，当表层水速度增加时，在从管子入口段的下游很远处就形成了团块并引发了团块。此外，发现所获得的结果与先前的经验相关性很好。

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