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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v34.i5.60
pages 475-491

Features of Wave-Packet Propagation in Two-Layer Fluid of Finite Depth

Igor T. Selezov
Institute of Hydromechanics of National Academy of Sciences of Ukraine, Zhelyabov St., 8/4, Kyiv, 03680, MSP, Ukraine
Olga V. Avramenko
Kirovograd State V. Vinnichenko Pedagogical University, Kirovograd
Yu. V. Gurtovy
Kirovograd State Pedagogical University, Ukraine

RESUMO

Propagation of wave-packet at the interface between two fluid layers with different properties is investigated taking into account the surface tension. Using the method of multiple scale expansions the evolution equation is obtained in the third approximation. The wave-packet structure is analyzed and compared with the similar wave-packets in the systems “half-space/half-space” and “layer/half-space”. The wave-packet shape and conditions of the second harmonic resonance are investigated. The conditions of wave-packet propagation of the ∪-form are presented and characteristic features of resonance region are determined.


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