Experimental investigation on the resonance of a liquid column in a capillary tube

Markus Hilpert, Cass T. Miller

Research output: Contribution to journalArticlepeer-review

Abstract

Using a visualization technique, we observed the resonance of a water column trapped in a vertically oriented capillary tube due to acoustic excitation. The analysis of the quasi-static response suggests that the upper nonvisible meniscus followed the imposed flow by means of a sliding contact line without changing its shape. We compared the experiments with a previously developed theoretical model that addresses dissipation by assuming an axially symmetric and incompressible flow field that is spatially constant along the tube axis. Whereas the model agrees well with the measured quasi- static response, the deviations in the dynamic response reveal shortcomings of the model due to the simplified treatment of the viscous dissipation.

Original languageEnglish (US)
Pages (from-to)62-68
Number of pages7
JournalJournal of Colloid And Interface Science
Volume219
Issue number1
DOIs
StatePublished - Nov 1 1999

Keywords

  • Capillarity
  • Dynamic contact angle
  • Hydrodynamics
  • Resonance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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