The Motion of High-Reynolds-Number Bubbles in Inhomogeneous Flows
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J. Magnaudet [1] ; I. Eames [2]
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[1] Institute of Fluid Mechanics of Toulouse
Institute of Fluid Mechanics of Toulouse
Arrondissement de Toulouse, Francia
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[2] School of Mathematics, Bristol University, England
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- Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 32, 2000, págs. 659-708
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Predicting the motion of bubbles in dispersed flows is a key problem in fluid mechanics that has a bearing on a wide range of applications from oceanography to chemical engineering. In this review we synthesize the recent progress made in describing bubble motion in inhomogeneous flow. A trident approach consisting of experimental, analytical, and numerical work has given a clearer description of the hydrodynamic forces experienced by isolated bubbles moving either in inviscid flows or in slightly viscous laminar flows. A significant part of the paper is devoted to a discussion of drag, added-mass force, and shear-induced lift experienced by spheroidal bubbles moving in inertially dominated, time-dependent, rotational, nonuniform flows. The important influence of surfactants and shape distortion on bubble motion in a quiescent liquid is highlighted. Examples of bubble motion in inhomogeneous flows combining several of the effects mentioned above are discussed.
