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Dynamic Behavior of a Drop on a Vertically
Oscillating Surface
Fátima Flores Galicia, Flor Guadalupe Haro Velázquez,
Gerardo Rangel Paredes, David Porta Zepeda,
Carlos Echeverría Arjonilla and Catalina Stern Forgach
Abstract
In the present paper the dynamic behavior of a drop of water subject to a
vertical oscillating force is studied experimentally. A hydrophobic surface was used
to maintain the form of the drop. The deformation of the drop as a response to several
frequencies was analyzed by visualizing the oscillating patterns and measuring the
maximum height of the drop as a function of time. The dynamic behavior has been
classified in three phases: harmonic, geometric and chaotic.
1 Introduction
In the last few years, the study of the response to external forces of liquids lying on
an oscillating surface has been of great interest due to its applications in industry, in
geophysics and in seismology. In particular, the mixing generated by internal currents
inside the drop is used in the pharmaceutical industry (Whitehill et al.
2010
).
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