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 Citations (Scopus)

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 - 1995

Fingerprint

low Reynolds number
Gravitation
Reynolds number
gravitation
Fluids
fluids
Phase shift
shear stress
stress distribution
Surface tension
Stress concentration
Shear stress
interfacial tension
phase shift
roughness
Surface roughness
Viscosity
viscosity
perturbation
Wavelength

Keywords

  • low Reynolds number flow
  • thin films
  • wavy wall

ASJC Scopus subject areas

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

Cite this

Gravity-driven two-layer flow down a slightly wavy periodic incline at low Reynolds numbers. / Kang, Feng; Chen, Kangping.

In: International Journal of Multiphase Flow, Vol. 21, No. 3, 1995, p. 501-513.

Research output: Contribution to journalArticle

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