Article

Article title STUDY OF EVANESCENT WAVES FOR ENVIRONMENTAL MONITORING OF WATER AREAS
Authors A.P. Voloshchenko, S.P. Tarasov
Section SECTION I. METHODS AND MEANS OF ECOLOGICAL MONITORING OF WATER AREAS
Month, Year 09, 2013 @en
Index UDC 534.222
DOI
Abstract Investigate problems in the propagation of acoustic waves of a sound range near the bound-aries of media with a significant difference in acoustic impedance. The features of the wave processes occurring at the water-air interface, due to the influence of evanescent waves. Considered in detail the properties and parameters of an inhomogeneous plane wave. The results of mathematical modeling of the transmission coefficients through this border for a point source into account the contribution inhomogeneous components. A comparison of theoretical calculations and experimental studies. It is shown that than the frequency of radiation of a source is lower and the closer it is located to water-air interface, the acoustic transparency of this border is higher.

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Keywords Inhomogeneous plane wave; water-air interface; transmission coefficient; spherical wave.
References 1. Исакович М.А. Общая акустика – М.: Наука, 1973. – 496 с.
2. Бреховских Л.М. Отражение и преломление сферических волн // УФН. – 1949. – Т. 38, № 1. – С. 1-41.
3. Годин О.А. Прохождение низкочастотного звука из воды в воздух // Акустический журнал. – 2007. – Т. 53, № 3. – С 353-361.
4. Волощенко А.П., Тарасов С.П. Эффект аномальной прозрачности границы раздела “жидкость-газ” для звуковых волн // Акустический журнал. – 2013. – Т. 59, № 2. – С. 186-192.
5. Волощенко А.П., Тарасов С.П. Влияние неоднородных волн на прохождение низкочастотного звука через границу раздела “вода-воздух” // Известия ЮФУ. Технические науки. – 2012. – № 9 (134).– С. 201-206.

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