| Journal: | Journal of the Brazilian Society of Mechanical Sciences |
| Database: | PERIÓDICA |
| System number: | 000312086 |
| ISSN: | 0100-7386 |
| Authors: | Fagundes Netto, José Roberto1 Fabre, Jean2 Peresson, Lucien |
| Institutions: | 1PETROBRAS, Rio de Janeiro. Brasil 2Institut National Polytechnique de Toulouse, Institut de Mecanique des Fluides, Toulouse, Haute-Garonne. Francia |
| Year: | 2001 |
| Volumen: | 23 |
| Number: | 4 |
| Pages: | 463-470 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | Modelling of the slug structure requires a new effort on fundamental research. To clarify some aspects of the horizontal slug flow, an experimental study of the behaviour of two isolated bubbles in a single-phase liquid flow was performed. This procedure was adopted to avoid the overlap of different phenomena induced by a train of long bubbles. The experimental facility consists of a 90-m horizontal PVC pipe with internal diameter of 0,053 m. The behaviour of two single air bubbles travelling in a water flow was studied. Focus was given on the influence of the distance between the bubbles on the velocity of the second bubble. This study allows the understanding of the mechanism of overtaking that takes place right after the slug formation and that precedes the coalescence of bubbles in a slug flow. The results show that bubbles placed behind a liquid slug smaller than a critical value move faster than the leading one. Otherwise, they move slower than the leading one |
| Disciplines: | Física y astronomía, Ingeniería |
| Keyword: | Dinámica de fluidos, Ingeniería química, Flujo de dos fases, Flujo slug, Burbujas, Interacción |
| Keyword: | Physics and astronomy, Engineering, Fluid dynamics, Chemical engineering, Two phase flow, Slug flow, Bubbles, Interaction |
| Full text: | Texto completo (Ver HTML) |
