LDA-Based Experimental Investigation of Velocity Pulsations in the Vortex Tube

IF 1.3 4区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Engineering Thermophysics Pub Date : 2024-09-18 DOI:10.1134/s1810232824030032

I. K. Kabardin, N. I. Yavorsky, M. Kh. Pravdina, M. R. Gordienko, S. V. Kakaulin, K. S. Zubanov, G. V. Bakakin, V. G. Meledin

引用次数: 0

Abstract

Detailed experimental data on the kinematic characteristics of the flow in a vortex tube along its entire length are presented and analyzed. Experimental data obtained in a vortex tube with square cross-section of the working channel were compared at three values of the cold mass fraction: 0.4, 0.5, and 0.75 with the air expansion ratio in the apparatus of \(\pi=5\). The behavior of standard deviations from the mean values of velocity components is analyzed. The noticeable peaks in the percentage of standard deviation from the longitudinal mean velocity component are observed in the area of the near wall flow temperature growth along the tube.

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基于 LDA 的涡管速度脉动实验研究

摘要介绍并分析了涡流管内全长流动运动学特性的详细实验数据。比较了在工作通道横截面为方形的涡流管中获得的三种冷质量分数值的实验数据：0.4、0.5 和 0.75：0.4、0.5 和 0.75，设备中的空气膨胀比为 \(\pi=5\)。分析了速度分量平均值的标准偏差行为。纵向平均速度分量标准偏差百分比的明显峰值出现在近壁流动温度沿管子增长的区域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Engineering Thermophysics THERMODYNAMICS-ENGINEERING, MECHANICAL

CiteScore

2.30

自引率

12.50%

发文量

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.