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Interfacial forces on a bubble growing with eccentric cell model
G. Espinosa-Paredes, O. Cazarez-Candia, A. Vázquez-Rodríguez;
Revista Mexicana de Ingeniería Química 2007 6(1)
Resumen
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This article presents the development of a two-phase flow model in which the variation of the bubble radius due to changes in pressure was taken into account. The development considers expansion effects in the interaction forces between a dilute dispersion of gas bubbles and a continuous liquid phase. The closure relationships, associated with the spatial deviation around averaging variables, were formulated as functions of known variables. In order to solve the closure problem, as an approach of the heterogeneous structure of the two-phase flow, a geometric model given by an eccentric unit cell was applied. The obtained closure relationships include terms that represent combined effects from translation and pulsation due to displacement and size variation of the bubbles.

Palabras clave: potential flow, two-phase flow, Navier-Stokes equations, closure relationships.
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Universidad Autónoma del Estado de México
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