Abstract
We suggest a mechanism for the entrainment of air by a wavy plate or liquid film entering a pool of stagnant liquid. We have tested our hypothesis in a scaled experiment. With this set-up we show the detailed motion of the pool surface, clearly revealing the entrainment mechanism. We found that the onset of entrainment coincides reasonably well with the proposed model.
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References
Delfos (1996) “Experiments on air entrainment from a stationary slug bubble in a vertical tube”. Ph.D.-thesis Delft University of Technology; ISBN 90-370-0149-1.
McKeogh, E.J. and Ervine, D.A. (1981) “Air entrainment rate and diffusion pattern of plunging liquid jets” Chemical Engineering Science 36, 1161–1172.
Kockx, J.P. (1999) “Experiments on the gas exchange between a Taylor bubble and its liquid slug in a vertical tube”. Ph.D.-thesis Delft University of Technology; ISBN 90-370-0173-4.
Ohl, C.D., Oğuz, H.N. and Prosperetti, A. (1999) On the mechanism of air entrainment by a disturbed liquid jet, submitted to Physics of Fluids.
Zhu, Y.G., Oğuz, H.N. and Prosperetti, A. (1999) Air entrainment by impinging liquid jets with surface disturbances, accepted by J. Fluid Mech.
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© 2000 Springer Science+Business Media Dordrecht
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Delfos, R., Kockx, J. (2000). Air entrainment by a wavy plate entering a pool of stagnant liquid. In: Gyr, A., Koumoutsakos, P.D., Burr, U. (eds) Science and Art Symposium 2000. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4177-2_4
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DOI: https://doi.org/10.1007/978-94-011-4177-2_4
Publisher Name: Springer, Dordrecht
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