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

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v29.i2.50
10 pages

The Effect of Inhomogeneity of Elastic Layer Placed between Different Fluids on the Wave Propagation

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

Краткое описание

Propagation of harmonic waves in the hydroelastic system consisting of in-homogeneous elastic layer placed between the two compressible fluids of different physical properties is investigated. Numerical analysis of the dispersion equation is carried out for phase velocities less than the greater sound velocity of two fluids. The dispersion equation has two real roots corresponding to quasisymmetric and quasiantisymmetric oscillations of the layer. The two limiting cases are considered: the layer between the two fluids of different properties and the inhomogeneous layer between the same fluids. The wave modes are presented for longitudinal and transverse displacements, shear and normal stresses in elastic layer. It is established from the analysis of wave modes that inhomogeneity of the layer can lead to a strong concentration of wave fields both in central part (inhomogeneity of the first type), and near boundaries of the layer (inhomogeneity of the second type).


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