Approximation for Thin Boundary Layers in the Sheared Flow Duct Transmission Problem

Walter Eversman

doi:10.1121/1.1913478

Approximation for Thin Boundary Layers in the Sheared Flow Duct Transmission Problem

Walter Eversman

Missouri University of Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

An approximation based on an inner-expansion method is shown for obtaining an analytical solution for the problem of the transmission of sound in a duct containing a sheared flow in the case when the region of nonuniform flow is very thin. The method can be used with conventional uniform-flow transmission analysis to determine wavenumbers and mode shapes for acoustic propagation and attenuation.

Original language	American English
Journal	Journal of the Acoustical Society of America
DOIs	https://doi.org/10.1121/1.1913478
State	Published - Jan 1 1973

Disciplines

Aerospace Engineering
Mechanical Engineering

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https://doi.org/10.1121/1.1913478

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abstract = " An approximation based on an inner-expansion method is shown for obtaining an analytical solution for the problem of the transmission of sound in a duct containing a sheared flow in the case when the region of nonuniform flow is very thin. The method can be used with conventional uniform-flow transmission analysis to determine wavenumbers and mode shapes for acoustic propagation and attenuation.",

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AB - An approximation based on an inner-expansion method is shown for obtaining an analytical solution for the problem of the transmission of sound in a duct containing a sheared flow in the case when the region of nonuniform flow is very thin. The method can be used with conventional uniform-flow transmission analysis to determine wavenumbers and mode shapes for acoustic propagation and attenuation.

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JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

ER -

Approximation for Thin Boundary Layers in the Sheared Flow Duct Transmission Problem

Abstract

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