- Tytuł:
- Detection of two-phase flow patterns in a vertical minichannel using the recurrence quantification analysis
- Autorzy:
-
Mosdorf, R.
Górski, G. - Powiązania:
- https://bibliotekanauki.pl/articles/387494.pdf
- Data publikacji:
- 2015
- Wydawca:
- Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
- Tematy:
-
two-phase flows
recurrence plot
recurrence quantification analysis
przepływ dwufazowy
analiza jakościowa - Opis:
- The two-phase flow (water-air) occurring in square minichannel (3x3 mm) has been analysed. In the minichannel it has been observed: bubbly flow, flow of confined bubbles, flow of elongated bubbles, slug flow and semi-annular flow. The time series recorded by laser-phototransistor sensor was analysed using the recurrence quantification analysis. The two coefficients:Recurrence rate (RR) and Determinism (DET) have been used for identification of differences between the dynamics of two-phase flow patterns. The algorithm which has been used normalizes the analysed time series before calculating the recurrence plots.Therefore in analysis the quantitative signal characteristicswas neglected. Despite of the neglect of quantitative signal characteristics the analysis of its dynamics (chart of DET vs. RR) allows to identify the two-phase flow patterns. This confirms that this type of analysis can be used to identify the two-phase flow patterns in minichannels.
- Źródło:
-
Acta Mechanica et Automatica; 2015, 9, 2; 99-104
1898-4088
2300-5319 - Pojawia się w:
- Acta Mechanica et Automatica
- Dostawca treści:
- Biblioteka Nauki
Artykuł