Bubble Analogy and stabilization of core-annular flow
Bannwart, Antonio C.
Bubble Analogy and stabilization of core-annular flow - New Orleans 2000
Artículo publicado en la página web de la Faculdade de Engenharia Mecânica da Universidade Estadual de Campinas, Brasil ; Sitio visitado en noviembre de 2002 ; Navegadores de Internet ; Adobe Acrobat (PDF)
Transcripción del abstract publicado por el autor: A theory for the stabilization of annular liquid-liquid flow (i.e. core annular flow) in a horizontal pipe, when the two liquids have different densities and viscosities, is proposed. The analysis of the momentum equation in the cross section of the flow, including the interfacial tension effect, allows an interesting analogy between the peripheral flow around the core and the flow surrounding an ascending bubble. Based upon this mechanism, it is suggested that the viscous and inertial forces in core annular can be combined in a single drag force, which is analogous to the drag in bubbles. By modeling the action of the lubricating forces in this way, an equation is obtained which describes the interface shape. Results for the height-to-width aspect ratio of the core are compared with laboratory measurements done by the author for a heavy oil-water core annular flow in a horizontal pipe. A criterion for stabilization is proposed. = ETCE/OMAE 2000 ; ETCE2000/PROD-10028
Producción de petróleo y gas
Extracción de petróleo
Yacimientos de petróleos pesados
Extracción artificial
Estimulación de pozos
Modelos de simulación
Dinámica de fluidos
Desplazamiento inmiscible
Flujo en el espacio anular
Medición de presión
Gradientes de presión
Bubble Analogy and stabilization of core-annular flow - New Orleans 2000
Artículo publicado en la página web de la Faculdade de Engenharia Mecânica da Universidade Estadual de Campinas, Brasil ; Sitio visitado en noviembre de 2002 ; Navegadores de Internet ; Adobe Acrobat (PDF)
Transcripción del abstract publicado por el autor: A theory for the stabilization of annular liquid-liquid flow (i.e. core annular flow) in a horizontal pipe, when the two liquids have different densities and viscosities, is proposed. The analysis of the momentum equation in the cross section of the flow, including the interfacial tension effect, allows an interesting analogy between the peripheral flow around the core and the flow surrounding an ascending bubble. Based upon this mechanism, it is suggested that the viscous and inertial forces in core annular can be combined in a single drag force, which is analogous to the drag in bubbles. By modeling the action of the lubricating forces in this way, an equation is obtained which describes the interface shape. Results for the height-to-width aspect ratio of the core are compared with laboratory measurements done by the author for a heavy oil-water core annular flow in a horizontal pipe. A criterion for stabilization is proposed. = ETCE/OMAE 2000 ; ETCE2000/PROD-10028
Producción de petróleo y gas
Extracción de petróleo
Yacimientos de petróleos pesados
Extracción artificial
Estimulación de pozos
Modelos de simulación
Dinámica de fluidos
Desplazamiento inmiscible
Flujo en el espacio anular
Medición de presión
Gradientes de presión
