Dynamic imaging and analysis of transient mass transfer process using pixelated-array masked phase-shifting interferometry
Dynamic imaging and analysis of transient mass transfer process using pixelated-array masked phase-shifting interferometry
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DOI：
10.1016/j.ijheatmasstransfer.2021.121339
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发表时间：
2021-08
影响因子：
5.2
通讯作者：
Qixian Wu;Lin Chen;A. Komiya
中科院分区：
文献类型：
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作者：
Qixian Wu;Lin Chen;A. Komiya
扩散系统中传质过程的精确测量和可视化对于污染物的控制、药物扩散、化学反应和结晶过程等具有重要意义。本研究实现了一种像素阵列掩模相移干涉仪系统，并将其应用于液界面快速传质过程的测量。该干涉仪系统采用四相偏振成像机制，可实现高分辨率的瞬态非接触可视化。本文首先介绍了C2H5OH在蒸馏水中扩散的测量系统、目标函数和分析方法，并将其应用于C2H5OH在蒸馏水中的扩散分析，得到了C2H5OH在蒸馏水中扩散的基本特征。并应用该系统对几种醇-水扩散进行了可视化，定量地解释了不同扩散类型的扩散系数。最后，通过50 mg/mL氯化钠、甘油和BSA（牛血清白蛋白）溶液体系，对扩散和对流耦合过程进行了可视化和比较。利用瞬态成像技术研究了水溶液中无机物、有机小分子和大分子牛血清白蛋白（BSA）的不同特性。实验结果表明，该方法可以提供清晰的田间输运过程图像。通过这些场成像分析，可以更好地解释物质输运过程。
Precise measurement and visualization of mass transfer process in diffusion system is of critical importance to the control of pollutants, drug diffusion, chemical reaction and crystallization processes, etc. In this study, a Pixelated-Array Masked phase-shifting interferometer system is realized and applied to the measurement of fast mass diffusion process across liquid interface. Such interferometer system is developed with a four-phase polarized image-reconstruction mechanism, thus the transient feature of the non-contact visualization could be achieved with simultaneous image data with high resolution. In this study, the detailed measurement system, the target function and analytical methods are introduced and then applied first to the analysis of C2H5OH diffusion in distilled water, where the basic diffusion characteristics are obtained. Then the system is applied to visualize several kinds of alcohol-water diffusion and quantitatively explained the diffusion coefficient of different kinds. Finally, the coupled diffusion and convection processes are visualized and compared by using 50 mg/mL Sodium chloride, Glycerin, and BSA(Bovine serum albumin) solution system. Transient imaging analysis is conducted in this study to show the different characteristics of inorganic, small organic and large molecular (BSA) in water solution. It is confirmed that the current method could provide clear images of field-transportation process. Through those field imaging analysis, the mass transportation process could be better explained.