| Journal: | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Database: | PERIÓDICA |
| System number: | 000312183 |
| ISSN: | 1678-5878 |
| Authors: | Cunha, F.R1 Almeida, M.H.P Loewenberg, M2 |
| Institutions: | 1Universidade de Brasilia, Departamento de Engenharia Mecanica, Brasilia, Distrito Federal. Brasil 2Yale University, Department of Chemical Engineering, New Haven, Connecticut. Estados Unidos de América |
| Year: | 2003 |
| Season: | Ene-Mar |
| Volumen: | 25 |
| Number: | 1 |
| Pages: | 30-40 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | In this paper, three-dimensional boundary integral computer simulations of emulsions in shear flows are described. Results for ordered BCC emulsions with dispersed-phase volume fractions below the critical concentration are presented. Complex rheological features including: shear-thinning viscosities, normal stress differences, and a nonlinear frequency response are also explored. For deformable drops, pairwise collision produces net cross-flow displacements that govern self-diffusion of drops. We compute trajectories of two interacting drops in shearing and present interesting numerical simulations of three dimensional gravity-induced motion of two drops. The results also demonstrate the feasibility of simulating high-volume-fraction emulsions and foam |
| Disciplines: | Física y astronomía |
| Keyword: | Dinámica de fluidos, Mecánica, elasticidad y reología, Integral de frontera, Emulsiones, Simulación, Reología, Flujo de corte |
| Keyword: | Physics and astronomy, Fluid dynamics, Mechanics, elasticity and rheology, Boundary integral, Emulsions, Shear flow, Rheology |
| Full text: | Texto completo (Ver HTML) |
