Problem of Low-frequency Localized Oscillations in a Thin Film with Growing Islands |
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Authors: | Dmitry Indeitsev Yulia Mochalova |
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Institution: | (1) Institute of Problems in Mechanical Engineering, Russian Academy of Sciences, V.O., Bol’shoy 61, 199178 St.Petersburg, Russian Federation |
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Abstract: | Influence of localization waves to islands growing on a thin film is investigated. The film is modelled as a fluid layer covered
by an inertial surface with the variable density of mass and surface tension. Mathematically, the problem is reduces to analysis
of a system of non-linear equations describing the growth of island nuclei and wave propagation in the films. The existence
of trapped modes for the corresponding frequency-domain problem is established. We show that for large time wave localization
near islands gives some contribution in the increase of the velocity of island growth. |
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Keywords: | Thin film Growing island Trapped mode Discrete spectrum |
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