Narrowband high frequency sound scattering intensities for moving sphere surface and for adjacent flow Inhomogeneities are estimated independently in the problem of moving sphere sound scatterlng. It is shown that due to inmonochromaticity of incident sound field observability of conventional scattering picture could be substantially spoiled, even for immobile scatterer. Unlike sphere surface,flow scattering, for instance, potential flow is proven to lessen harmful Inmonochromaticity influence with incident field band width increase in a way that flow scattering yield is underlined. Even more substantial contribution to total high frequency scattered field in shadow field region is predicted for adjacent flows with nonzero vorticity. Scattering intensity calculations are accompanied by crossections estimates for narrowband uniform sound field spectra shape based on optics theorem.
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