Vibration of a Water Drop in a Hydrophobic Medium

Abstract

The behavior of a water drop on a hydrophobic substrate subject to vertical vibrations is described. The dynamics of the surface passes through different phases: harmonic, geometric and chaotic (Flores Galicia et al.). To characterize the motion in terms of quantifiable variables, the height at different points on the surface was measured as a function of time. A Fourier analysis of the signal was made to determine the frequency response to changes in the forcing.