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

Feng Kang; Kangping Chen

doi:10.1016/0301-9322(94)00080-4

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

Feng Kang, Kangping Chen

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

23 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 language	English (US)
Pages (from-to)	501-513
Number of pages	13
Journal	International Journal of Multiphase Flow
Volume	21
Issue number	3
DOIs	https://doi.org/10.1016/0301-9322(94)00080-4
State	Published - Jun 1995

Keywords

low Reynolds number flow
thin films
wavy wall

ASJC Scopus subject areas

Mechanical Engineering
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1016/0301-9322(94)00080-4

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

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.",

keywords = "low Reynolds number flow, thin films, wavy wall",

author = "Feng Kang and Kangping Chen",

note = "Funding Information: work is supported by the National Science Foundation and the Xerox Corporation.",

year = "1995",

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doi = "10.1016/0301-9322(94)00080-4",

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T1 - Gravity-driven two-layer flow down a slightly wavy periodic incline at low Reynolds numbers

AU - Kang, Feng

AU - Chen, Kangping

N1 - Funding Information: work is supported by the National Science Foundation and the Xerox Corporation.

PY - 1995/6

Y1 - 1995/6

N2 - 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.

AB - 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.

KW - low Reynolds number flow

KW - thin films

KW - wavy wall

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JO - International Journal of Multiphase Flow

JF - International Journal of Multiphase Flow

IS - 3

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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