Effect of Inclination Angle on Wall Shear Stress in Upward Two-Phase Flow in a Pipe

IF 1.3 4区 工程技术 Q3 ENGINEERING, MECHANICAL Journal of Engineering Thermophysics Pub Date : 2024-09-18 DOI:10.1134/S1810232824030068
O. N. Kashinsky, A. S. Kurdyumov, A. E. Gorelikova
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Abstract

An experimental study of gas liquid flow in an inclined circular pipe was performed. Experiments were performed for two values of superficial liquid velocities and different gas flow rates. The angle of pipe inclination varies from 10° to 80° with respect to horizontal position. Wall shear stress was measured in the apex point of the pipe using an electrodiffusional technique. A strong effect of pipe inclination on wall shear stress was shown. The highest values of wall shear stress corresponded to the angles of 40° to 60°. A significant increase of wall shear stress at low gas flow rates was detected.

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倾角对管道中向上两相流的壁面剪应力的影响
摘要 对倾斜圆管中的气液流动进行了实验研究。实验采用了两种表面液体速度值和不同的气体流速。与水平位置相比,管道的倾斜角度从 10° 到 80° 不等。使用电扩散技术在管道顶点测量了管壁剪应力。结果表明,管道倾斜度对管壁剪应力有很大影响。管壁剪应力的最高值与 40° 至 60° 的角度相对应。在气体流速较低时,管壁剪应力明显增加。
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来源期刊
Journal of Engineering Thermophysics
Journal of Engineering Thermophysics THERMODYNAMICS-ENGINEERING, MECHANICAL
CiteScore
2.30
自引率
12.50%
发文量
0
审稿时长
3 months
期刊介绍: Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.
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