The dynamics of the sound waves at oblique incidence on the border «porous medium — gas»

About the authors:

Ilyas K. Gimaltdinov, Head of Department of Applied Mathematics and Mechanics, Sterlitamak Branch of Bashkir State University, Professor, Dr. Phys. and Math. Sci.
Liliya F. Sitdikova, an assistant professor, Department of Applied Informatics and programming, Sterlitamaksky branch of the Bashkir State University

Abstract:

The processes of reflection and transmission of sound waves at the "porous medium — gas" at oblique incidence from the side of the porous medium are examined. The dependence of the reflection and transmission coefficients on the frequency and angle of incidence is studied. It is shown that there is a critical angle of incidence at which total internal reflection occurs.

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