Identifying rotation and oscillation in surface tension measurement using an oscillating droplet method

Shumpei Ozawa, Takuro Koda, Masayoshi Adachi, Suguru Shiratori, Noriaki Takenaga, Taketoshi Hibiya, Masahito Watanabe

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We proposed a new approach to identify the frequencies of droplet rotation and m = ±2 oscillation that degrade the accuracy of surface tension measurement by an oscillating droplet method. Frequencies of droplet rotation and m = ±2 oscillation can be identified by a phase unwrapping analysis of time dependence of the deflection angle for the maximum diameter of the droplet image observed from above. The present method was validated, using test data with given frequencies.

Original languageEnglish
Pages (from-to)421-430
Number of pages10
JournalHeat Transfer - Asian Research
Volume37
Issue number7
DOIs
Publication statusPublished - 2008 Dec 1
Externally publishedYes

Keywords

  • Droplet rotation
  • Electromagnetic levitation
  • Oscillating droplet method
  • Phase unwrapping method
  • Rayleigh's theory
  • Spherical harmonics
  • Surface tension

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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