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About bubbles and vortex rings

  • C. Martínez-Bazán (a1)
Abstract

Bubble interaction with turbulence has a number of applications in engineering processes and nature. The complex interplay between the vortical structures present in a turbulent flow and the bubbles drives their deformation dynamics, which may lead to bubble rupture under the appropriate conditions. Such a process includes nonlinear interaction among the turbulent eddies and between the eddies and the bubbles. Thus, the coupled evolution of a single vortex ring with a bubble represents an idealized scenario that can provide a framework to shed light on understanding such a common and complex mechanism. Jha & Govardhan (J. Fluid Mech., vol. 773, 2015, pp. 460–497) have performed elegant experiments generating controlled vortex rings and injecting bubbles of known volume. They have reported interesting results on the elongation process of the bubble and its impact on vortex dynamics.

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Corresponding author
Email address for correspondence: cmbazan@ujaen.es
References
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van Gils, D. P. M., Narezo Guzman, D., Sun, C. & Lohse, D. 2013 The importance of bubble deformability for strong drag reduction in bubbly turbulent Taylor–Couette flow. J. Fluid Mech. 722, 317347.
Higuera, F. J. 2004 Axisymmetric inviscid interaction of a bubble and a vortex ring. Phys. Fluids 16 (4), 11561159.
Hinze, J. O. 1955 Fundamentals of the hydrodynamics mechanisms of splitting in dispersion process. AIChE J. 1, 289295.
Jha, N. K. & Govardhan, R. N. 2015 Interaction of a vortex ring with a single bubble: bubble and vorticity dynamics. J. Fluid Mech. 773, 460497.
Kolmogorov, A. N. 1949 On the breakage of drops in a turbulent flow. Dokl. Akad. Nauk SSSR 66, 825828.
Lauterborn, W. & Kurz, T. 2010 Physics of bubble oscillations. Rep. Prog. Phys. 73, 106501.
Martínez-Bazán, C., Montañes, J. S. & Lasheras, J. C. 1991 On the break-up of an air bubble injected into a fully developed turbulent flow. Part 1. Break-up frequency. J. Fluid Mech. 401, 157182.
Revuelta, A. 2010 On the interaction of a bubble and a vortex ring at high Reynolds numbers. Eur. J. Mech. (B/Fluids) 29, 119126.
Revuelta, A., Rodríguez-Rodríguez, J. & Martínez-Bazán, C. 2008 On the breakup of bubbles at high Reynolds numbers and subcritical Weber numbers. Eur. J. Mech. (B/Fluids) 27, 591608.
Risso, F. & Fabre, J. 1998 Oscillations and breakup of a bubble immersed in a turbulent field. J. Fluid Mech. 372, 323355.
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Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
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