Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4977119 | Mechanical Systems and Signal Processing | 2017 | 10 Pages |
Abstract
By changing air and water flow rates in the two-phase (air-water) flow through a minichannel, we observed the evolution of air bubbles and slugs patterns. This spatiotemporal behaviour was identified qualitatively by using a digital camera. Simultaneously, we provided a detailed analysis of these phenomena by using the corresponding sequences of light transmission time series recorded with a laser-phototransistor sensor. To distinguish particular patterns, we used recurrence plots and recurrence quantification analysis. Finally, we showed that the maxima of various recurrence quantificators obtained from the laser time series could follow the bubble and slugs patterns in studied ranges of air and water flows.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Grzegorz Litak, Grzegorz Górski, Romuald Mosdorf, Andrzej Rysak,