Abstract
On the basis of the boundary-layer concept, a method is proposed for calculating the oscillation-velocity and temperature fields in a volume of arbitrary form, bounded by rigid walls and filled by a viscous heat-conducting fluid. It is shown that the potential part of the sound field may be determined as in an ideal non-heat-conducting fluid, while close to the wall there are not only potential waves but also eddy velocity waves and temperature waves moving out from the wall. A method of solving a broad class of problems is discussed in which the boundary conditions at a distorted surface may be replaced, without significant error, by conditions at a plane boundary.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 92–97, November, 1980.
It remains to thank our colleagues in the acoustics faculty for participating in discussions of the work.
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Egorichev, A.V., Kravchun, P.N. & Chernyshev, K.V. Acoustic boundary layer. Soviet Physics Journal 22, 1200–1204 (1979). https://doi.org/10.1007/BF00894973
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DOI: https://doi.org/10.1007/BF00894973