| Revista: | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312236 |
| ISSN: | 1678-5878 |
| Autores: | Matos, A. de1 Rosa, E.S Franca, F.A |
| Instituciones: | 1Universidade Estadual de Campinas, Departamento de Energia, Campinas, Sao Paulo. Brasil |
| Año: | 2004 |
| Periodo: | Jul-Sep |
| Volumen: | 26 |
| Número: | 3 |
| Paginación: | 308-316 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | In this work one shows experimental data and numerical results of the void fraction distribution in vertical upward air-water bubbly flows in a square cross-section channel. To measure the void fraction distribution one used a single wire conductive probe. The averaged void fraction ranged from 3.3% to 15%; the liquid and the gas superficial velocities varied from 0.9 m/s to 3.0 m/s and 0.04 m/s to 0.5 m/s, respectively. The experimental results for the void fraction distribution were compared with numerical calculation performed by an Eulerian-Eulerian implementation of the Two-Fluid Model. In this work one performs the turbulence modeling with three approaches: using an algebraic model, the k-epsilon two-phase model and the k-epsilon two-phase two-layer model. Comparisons between the experimental and numerical data revealed, in general, good agreement |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Dinámica de fluidos, Flujo burbujeante, Distribución de fases, Canales rectangulares |
| Keyword: | Physics and astronomy, Fluid dynamics, Bubble flow, Phase distribution, Square channels |
| Texto completo: | Texto completo (Ver HTML) |
