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使用平行丝阵列探头和平面激光诱导荧光法检测倾斜液-液流中的界面结构

Detection of Interfacial Structures in Inclined Liquid-Liquid Flows Using Parallel-Wire Array Probe and Planar Laser-Induced Fluorescence Methods.

作者信息

Zhai Lusheng, Meng Zihan, Yang Jie, Zhang Hongxin, Jin Ningde

机构信息

School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China.

出版信息

Sensors (Basel). 2020 Jun 2;20(11):3159. doi: 10.3390/s20113159.

DOI:10.3390/s20113159
PMID:32498418
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7308946/
Abstract

Flows of two immiscible liquids through inclined pipes are often encountered in industrial processes. The interfacial characteristics in inclined pipes are of significance for understanding the mechanism of flow pattern transition and modeling the flow parameters. This paper developed a novel experimental technique to access the interface characteristics of liquid-liquid flows, during which optical and electrical methods were successfully combined by matching the refractive index and conductivity of the flows. A planar laser-induced fluorescence (PLIF) system was set up with a continuous laser and high-speed camera. Organic and aqueous phases were chosen to match refractive indices. The liquid-liquid interface in the middle of the pipe could be clearly visualized by the PLIF system. Meanwhile, two conductance parallel-wire array probes (CPAPs) were designed to reconstruct the liquid-liquid interfaces at upward and downward pipe cross-sections. The performances of the CPAP were validated using the PLIF results and employed to investigate the liquid-liquid interfacial structures. The interfacial shape and its instability were uncovered using the reconstructed interfaces by the CPAPs.

摘要

在工业过程中经常会遇到两种互不相溶的液体通过倾斜管道流动的情况。倾斜管道中的界面特性对于理解流型转变机理和模拟流动参数具有重要意义。本文开发了一种新颖的实验技术来获取液 - 液流动的界面特性，在此过程中通过匹配流动的折射率和电导率成功地将光学和电学方法结合起来。利用连续激光器和高速相机建立了平面激光诱导荧光（PLIF）系统。选择有机相和水相使其折射率匹配。通过PLIF系统可以清晰地观察到管道中部的液 - 液界面。同时，设计了两个电导平行丝阵列探头（CPAPs）来重建管道向上和向下横截面处的液 - 液界面。利用PLIF结果验证了CPAPs的性能，并用于研究液 - 液界面结构。通过CPAPs重建的界面揭示了界面形状及其不稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/50668fd41561/sensors-20-03159-g020.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/0556105eb785/sensors-20-03159-g010.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/50668fd41561/sensors-20-03159-g020.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/3c1a72cc18cd/sensors-20-03159-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/9b801aec1733/sensors-20-03159-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/00a477e556ee/sensors-20-03159-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/0556105eb785/sensors-20-03159-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/7fb04f2ecdf1/sensors-20-03159-g011a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/1c310afb76a3/sensors-20-03159-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/da1c5bfd2d74/sensors-20-03159-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/bec8b64b15fe/sensors-20-03159-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/f13b33724655/sensors-20-03159-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/e7a719e95e81/sensors-20-03159-g016a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/5c8a4e444ccb/sensors-20-03159-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/6d9b1b175b65/sensors-20-03159-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/9291571246ee/sensors-20-03159-g019.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49ff/7308946/50668fd41561/sensors-20-03159-g020.jpg

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本文引用的文献

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