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2 Turbulence : international journal

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Image processing and statistical analysis of the signals in gas-liquid flows research

Ulbrich R., Zając D.

Turbulence : international journal

2005

Vol. 11

141-148

The aim of this work is an experimental hydrodynamic analysis of two-phase gas--liquid flow carried in bubble column with the usage of digital image processing method (DIP) connected with statistical analysis. The measurement signals were recorded by high speed CMOS camera images sequences of the two phase flow. The results of the image processing and statistic analysis were flow regimes identification and velocity determination.

Micro particle image velocimetry : an overview

Mielnik M. M., Saetran L. R.

Turbulence : international journal

2004

Vol. 10

83-90

We present an overview of Micro Particle Image Velocimetry (jjPIV); an optical, non-intrusive measurement technique permitting detailed flow-field measurements in microfluidic devices. Both theoretical and practical issues related to uPIV are discussed, such as optical set-up, microscope objective properties, optical filters, seeding particles, particle concentration, flow illumination, system resolution, and data analysis methods. Literature overview of major work done on the subject is provided, along with application examples and potential use. Furthermore, the main limitations of the technique are pointed out.