Drift Flux Model
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. PREVISÃO NUMÉRICA DE ESCOAMENTO BIFÁSICO EM TUBULAÇÕES UTILIZANDO O MODELO DE DESLIZAMENTO / NUMERICAL PREDICTION OF TWO-PHASE FLOW IN PIPELINE WITH THE DRIFT-FLUX MODEL
Na produção de gás e petróleo em campos de águas profundas são comumente encontrados trechos verticais de dutos (risers) na aproximação final à plataforma. Nesta configuração, podem ocorrer escoamentos bifásicos no regime de golfadas severas (severe slug) que gera alternância na produção da fase gasosa e líquida. Esta alternância é caracter
Publicado em: 2007
-
2. Ion flux transmission along an insulating duct with an axial magnetic field
An experimental study of the metallic ion flux in a pulsed copper vacuum arc with an annular anode and operated with an axial magnetic field is presented. It is employed an insulating drift duct surrounded by an external coil which generates an axial magnetic field. Operating the arc under vacuum condition, measurements of the ion flux and the plasma potenti
Brazilian Journal of Physics. Publicado em: 2004-12
-
3. Modelo computacional dinamico lagrangeano - euleriano para escoamento bifasico em poços de petroleo
A new computational model is introduced for describing long-term transient aspects of two-phase vertical flow, focusing the convection phenomenon only. The model uses the concepts ofthe drift-flux model along with specific constitutive relations for bubble, slug and annular flow. The motion of gas is treated with Lagrangean cells, whereas mass and momentum c
Publicado em: 1996
-
4. Segregação gravitacional : estudo do fenomeno e seu emprego em amortecimento de seus poços de petroleo
A model was proposed to predict the behavior of a petroleum well killing operation by gravitational segregation. It was based on drift-flux modelling to further extend the analogy verified between this phenomenum and the well-known kinematic relations that takes place in a spray liquid-liquid extraction tower. A transparent plexiglass prototype was construct
Publicado em: 1994