微泡尺寸和浓度测量中改进的校准方法和不确定度评定

IF 2.3 3区工程技术 Q2 ENGINEERING, MECHANICAL

Experiments in Fluids Pub Date : 2024-12-31 DOI:10.1007/s00348-024-03929-3

R. Stigter, D. Fiscaletti, G. E. Elsinga, T. van Terwisga, J. Westerweel

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引用次数: 0

摘要

干涉粒子成像（IPI）用于测量水中微泡（直径小于100微米）的大小分布和浓度。采用一种新的校准方法，可以获得微泡浓度的定量结果。使用远程显微镜影图（LMS）成像验证了结果。IPI和LMS估算的大小分布和浓度在不确定范围内是一致的。IPI浓度估计的相对不确定性约为10%，主要是由于检测到的气泡数量有限。结果表明，气泡图像检测算法的性能需要量化，以获得可靠的IPI浓度估计。

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An improved calibration methodology and uncertainty assessment in measurements of microbubble size and concentration

Interferometric particle imaging (IPI) is used to measure both the size distribution and concentration of microbubbles (with a diameter less than 100 micron) in water. Using a new method for calibration makes it possible to obtain quantitative results for the concentration of microbubbles. The results are validated using imaging with a long-range microscope shadowgraph (LMS). Estimates of the size distribution and concentration from both IPI and LMS agree within uncertainty limits. The relative uncertainty in the IPI concentration estimation is about 10% and is mostly due to the finite number of detected bubbles. It is shown that the performance of the bubble-image detection algorithm needs to be quantified to obtain a reliable estimate of the concentration obtained with IPI.

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来源期刊

Experiments in Fluids 工程技术-工程：机械

CiteScore

5.10

自引率

12.50%

发文量

157

审稿时长

3.8 months

期刊介绍： Experiments in Fluids examines the advancement, extension, and improvement of new techniques of flow measurement. The journal also publishes contributions that employ existing experimental techniques to gain an understanding of the underlying flow physics in the areas of turbulence, aerodynamics, hydrodynamics, convective heat transfer, combustion, turbomachinery, multi-phase flows, and chemical, biological and geological flows. In addition, readers will find papers that report on investigations combining experimental and analytical/numerical approaches.