Attenuation of sound wave radiated by spinning acoustic dipoles in a circular duct with an inserted impedance surface

【Author】

Lixi Huang;Chen Wang;

【Abstract】

<正>This study explores the potential of sound wave scattering in enhancing the side-wall absorption in a circular duct with high frequency sound and high circumferential spinning mode.The eigenvalue problem is solved numerically by Chebyshev collocation. The example shows significant potential of absorption enhance-

【Keywords】

high;Attenuation of sound wave radiated by spinning acoustic dipoles in a circular duct with an inserted impedance surface;mode;

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