Gravity-driven two-layer flow down a slightly wavy periodic incline at low Reynolds numbers

Feng Kang, Kangping Chen

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

Gravity-driven two-layer flow down a slightly wavy periodic incline at low Reynolds numbers is studied by a perturbation approach. Amplitude ratios and phase shifts of the fluid-fluid interface and the fluid-air free surface relative to the wavy wall are obtained as functions of the incline angle, wavelength of the roughness, and the ratios of film mean thickness, density and viscosity. Effects of surface tension and interface are included, and wall-shear-stress distributions are also discussed.

Original languageEnglish (US)
Pages (from-to)501-513
Number of pages13
JournalInternational Journal of Multiphase Flow
Volume21
Issue number3
DOIs
StatePublished - Jun 1995

Keywords

  • low Reynolds number flow
  • thin films
  • wavy wall

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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