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Visualization of the Fine Perturbation Structure of a Liquid Surface by Flows Induced by a Drop Impact

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Abstract

Using the methods of high-resolution photo- and video recording, this work studied the fine structure of the flows in the cavity center and on the growing splash tip, which disturb the smooth surface of the liquid after the crown falls. The surface geometry reflects the complexity of the pattern of fine flows in the near-surface fluid layer. The geometrical parameters of the structure formed by smooth spikes separated by thin depressions are determined. The structure formation is associated with the action of various exchange mechanisms between the kinetic, potential, and internal energy in a fluid with a free surface.

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Acknowledgments

The author thanks V. E. Prokhorov for his help in performing experiments and stimulating discussion. The experiments were performed in the facility for investigating surface and underwater processes (FISUP) which is a part of the hydrophysical complex for modeling hydrodynamic processes at the Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences.

Funding

The work is carried out with the support of the Russian Science Foundation (project no. 19-19-00598).

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Authors and Affiliations

  1. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, Russia

    Yu. D. Chashechkin

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  1. Yu. D. Chashechkin
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Correspondence to Yu. D. Chashechkin.

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Russian Text © The Author(s), 2019, published in Prikladnaya Matematika i Mekhanika, 2019, Vol. 83, No. 3, pp. 403–412.

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Chashechkin, Y.D. Visualization of the Fine Perturbation Structure of a Liquid Surface by Flows Induced by a Drop Impact. Fluid Dyn 54, 919–926 (2019). https://doi.org/10.1134/S0015462819070036

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  • DOI: https://doi.org/10.1134/S0015462819070036

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