Damping of gravity–capillary waves on water surface covered with a visco-elastic film of finite thickness

Results of laboratory studies of the damping of gravity–capillary waves on a water surface covered with a film of petroleum product (diesel fuel) in a wide range of change in a film thickness are presented. A nonmonotonic dependence (with a local maximum) of a damping coefficient on film thickness i...

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Bibliographic Details
Published inIzvestiya. Atmospheric and oceanic physics Vol. 53; no. 6; pp. 650 - 658
Main Authors Sergievskaya, I. A., Ermakov, S. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.11.2017
Springer Nature B.V
Subjects
Capillary waves
Climatology
Damping
Diesel
Diesel fuels
Earth and Environmental Science
Earth Sciences
Film thickness
Geophysics/Geodesy
Gravitation
Gravity
Laboratories
Mathematical models
Petroleum
Viscoelasticity
Wave dispersion
damping of gravity–capillary waves
viscoelasticity parameter
two-layer liquid
film
diesel oil
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Summary:Results of laboratory studies of the damping of gravity–capillary waves on a water surface covered with a film of petroleum product (diesel fuel) in a wide range of change in a film thickness are presented. A nonmonotonic dependence (with a local maximum) of a damping coefficient on film thickness is discovered. Numerical calculations of the dispersion equation for gravity–capillary waves in the presence of a viscoelastic film of arbitrary thickness, which confirmed the existence of the maximum of the damping coefficient as a function of film thickness, are performed. Based on a comparison of the calculation results and the data of laboratory measurements of wave characteristics, the values of parameters in the diesel fuel films are estimated in a wide range of a change in their thickness.
ISSN:0001-4338
1555-628X
DOI:10.1134/S000143381706010X