03275nam a2200445 4500 20260520005734.0 260224s2000 xxu ing Inglés ETCE/OMAE 2000 ; ETCE2000/PROD-10028 Bubble Analogy and stabilization of core-annular flow New Orleans 2000 14/06/2012 ; 10/01/03 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. CONGTP Bannwart, Antonio C. 12136 American Society of Mechanical Engineers, ASME 19000 Ocean & Mechanical Arctic Engineering, OMAE 19001 ETCE/OMAE 2000 Joint Conference: Energy for the New Milenium ( 2000 Feb 14-17 : New orleans) 19002 Energy Sources Technology Conference and Exhibition (23rd : 2000 feb 14-17 : New Orleans) 19003 International OMAE Conference for Ocean, Offshore and Arctic Engineers (19th : 2000 feb 14-17 : New Orleans) 19004 Producción de petróleo y gas 1020 Extracción de petróleo 1575 Yacimientos de petróleos pesados 5472 Extracción artificial 2326 Estimulación de pozos 80 Modelos de simulación 1403 Dinámica de fluidos 60 Desplazamiento inmiscible 4135 Flujo en el espacio anular 3160 Medición de presión 69 Gradientes de presión 8408 American Society of Mechanical Engineers, ASME 19000 Ocean & Mechanical Arctic Engineering, OMAE 19001 ETCE/OMAE 2000 Joint Conference: Energy for the New Milenium ( 2000 Feb 14-17 : New orleans) 19002 Energy Sources Technology Conference and Exhibition (23rd : 2000 feb 14-17 : New Orleans) 19003 International OMAE Conference for Ocean, Offshore and Arctic Engineers (19th : 2000 feb 14-17 : New Orleans) 19004 142838 142838 http://www.fem.unicamp.br/~bannwart/10028.pdf 0 0 0 0 213657 BVIAPG BVIAPG 2026-03-04 200021240 0 200021240 2026-03-04 15:44:05 2026-03-04 CONGTP