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Two-fluid modeling versus mechanistic approach and lift effects in bubbly sheared flows

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Abstract

The behavior of bubbles in a shear flow is experimentally studied. The lift force experienced by a single bubble in constant shear is determined. It proves to be roughly equal to a half of the virtual mass coefficient up to Reynolds numbers of the order of 2000. Besides, the void—migration taking place inside a bubbly boundary layer on a flat plate is studied and shown to be associated with an actual lateral deflection of the bubbles only under certain conditions. Finally, the link between the lagrangian description of the motion and the two-fluid model is qualitatively discussed.

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Authors and Affiliations

  1. Laboratoire de Méchanique des Fluides et d'Acoustique U.A. CNRS 263, École Centrale de Lyon, BP 163, 69131, Ecully Cedex, France

    J. Bataille & M. Lance

Authors
  1. J. Bataille
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  2. M. Lance
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Paper dedicated to Professor Joseph Kestin.

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Bataille, J., Lance, M. Two-fluid modeling versus mechanistic approach and lift effects in bubbly sheared flows. Int J Thermophys 14, 661–669 (1993). https://doi.org/10.1007/BF00502100

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  • DOI: https://doi.org/10.1007/BF00502100

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