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A new bubbly flow detection and quantification procedure based on optical laser-beam scattering behavior
Measurement Science and Technology ( IF 2.4 ) Pub Date : 2020-12-02 , DOI: 10.1088/1361-6501/abbd13
Mohammad Abbaszadeh , Mohammad Mehdi Alishahi , Homayoun Emdad

In this paper a new bubbly flow measurement procedure is proposed which can be used to both detect and quantify some main features of such flows. The proposed procedure is based on the optical scattering behavior of a laser-beam passing through a bubbly flow. A series of experiments are conducted to evaluate the procedure and important parameters involved such as length of bubbly flow, bubble number density and size distribution. Experimental results confirm the capabilities of the procedure for the detection and quantification of bubbly flows. Also, an optical model of the laser beam behavior in bubbly flow is derived to reevaluate the problem and its results are compared with the obtained experimental results. Outcomes of the optical model, which is in good agreement with the experimental results, emphasizes and describes the strong correlation between the injection strength parameter and forward scattered light intensity. Also, bubble size distribution is found to be in close connection with the amplitude of scattered light fluctuations. Therefore, upon the measurement of optical laser-beam scattering behavior passing through a bubbly flow, various properties of such flows could be determined.



中文翻译:

基于光学激光束散射行为的气泡流检测与定量新方法

在本文中,提出了一种新的气泡流量测量程序,该程序可用于检测和量化此类流量的一些主要特征。所提出的程序是基于穿过气泡流的激光束的光散射行为。进行了一系列实验,以评估程序和涉及的重要参数,例如气泡流的长度,气泡数密度和尺寸分布。实验结果证实了该程序检测和定量气泡流的能力。此外,导出了气泡流中激光束行为的光学模型以重新评估该问题,并将其结果与获得的实验结果进行比较。光学模型的结果与实验结果非常吻合,强调并描述了注入强度参数与前向散射光强度之间的强相关性。而且,发现气泡尺寸分布与散射光波动的幅度密切相关。因此,在测量通过气泡流的激光束散射行为时,可以确定这种流的各种特性。

更新日期:2020-12-02
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