This work presents a study of scattering phenomena in shear flows and its application to impedance walls. These flows are described by a dimensionless shear layer thickness and a mean Mach number. Both transmission through a given shear layer and reflection on an acoustic treatment are studied. This paper shows that the dimensionless thickness of the shear layer may be an interesting tool to reach perfect absorption or large lateral displacement of a Gaussian beam.
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| http://dx.doi.org/10.1121/1.5120523 | DOI Listing |
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