Abstract
An exact solution is obtained to the problem of axisymmetric normal modes and natural frequencies characterizing surface perturbations of a drop that sits with an arbitrary wetting angle on a substrate and experiences only gravity and surface tension. The resulting mode solutions are used to calculate and analyze different shapes of the perturbed surface for the same drop placed on a vibrating base. The distinctive feature of the present study is the explicit representation of the results in the form of calculated shapes of the surface of a vibrating drop, comparison of the parameters of actual drops with resonance frequencies, and comparison with experimental data.
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Ilyukhina, M.A., Makov, Y.N. Analysis of shape perturbations of a drop on a vibrating substrate for different wetting angles. Acoust. Phys. 55, 722–728 (2009). https://doi.org/10.1134/S1063771009060050
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DOI: https://doi.org/10.1134/S1063771009060050