Measurement of wavelength, dynamic contact angles, front velocity and shape of rivulets on an inclined plate by fluorescent imaging

M. F.G. Johnson*, Michael J Miksis, R. A. Schluter, S. G. Bankoff

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Fluorescent imaging is used to measure the fluid characteristics in the neighborhood of moving contact lines. The rivulets formed owing to the instability of the film front advancing down an inclined glass-plate are thus examined in detail, including lateral wavelength or spacing between rivulets, tip velocity, three-dimensional shape and dynamic contact line. The extensions of this technique to a large region (∼ 1 m2) and to a small thicknesses with the necessary precision required extensive calibration and independent measurements.

Original languageEnglish (US)
Pages (from-to)335-340
Number of pages6
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume334
StatePublished - Dec 1 1996

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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