https://doi.org/10.1140/epjp/s13360-022-02537-6
Regular Article
Liquid interface shaping and transport phenomena induced by spatially inhomogeneous vibrations
Institut Langevin, ESPCI Paris, Université PSL, CNRS, 75005, Paris, France
Received:
20
December
2021
Accepted:
26
February
2022
Published online:
11
March
2022
Vibrations can dynamically stabilize otherwise unstable liquid interfaces and produce new dynamic equilibria, called vibroequilibria. Typically, the vibrations are homogeneous in the liquid and the liquid interface remains approximately flat. Here, we produce controlled vertical vibration gradients by taking advantage of the resonant oscillations of sinking submerged bubbles. The locally increased amplitude of the vibrations induces a local elevation of the liquid interface that can be controlled and engineered. The mean elevation of the interface can be linked theoretically with the local vibration amplitude by a simple formula that is tested experimentally. In addition, the transport of a floating body at the interface can be induced by secondary flows triggered by the amplitude gradients of the liquid vibrations.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
