Periodic trends in two-phase flow through a vertical minichannel: wavelet and multiscale entropy analyses based on digital camera data
Artykuł w czasopiśmie
MNiSW
100
Lista 2021
| Status: | |
| Autorzy: | Górski Grzegorz, Litak Grzegorz, Mosdorf Romuald, Rysak Andrzej |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2019 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 13 |
| Strony: | 51 - 56 |
| Web of Science® Times Cited: | 1 |
| Scopus® Cytowania: | 1 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja autorska |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 21 marca 2019 |
| Abstrakty: | angielski |
| By changing the air and water flowrelative rates in the two-phase (air-water) flow through a minichannel,we observe aggrega-tion and partitioning of air bubbles and slugs of different sizes. An air bubble arrangement,which show non-periodic and periodic patterns. Thespatiotemporal behaviour was recorded by a digital camera. Multiscale entropy analysis is a method of measuring the time series complexity. The main aim of the paper was testing the possibility of implementation of multiscale entropy for two-phase flow patterns classification. For better understanding,the dynamics of the two-phase flow patterns inside the minichannel histograms and wavelet methods werealso used. In particular, we found a clear distinction between bubbles and slugs formations in terms of multiscale entropy. On the other hand,the intermediate region was effected by appearanceofboth forms in non-periodic and periodic sequences. The preliminary results were confirmed by using histograms and wavelets. |
