Damping of acoustic waves in straight ducts and turbulent flow conditions

22 Dec 2018 Tiikoja H. Auriemma F. Lavrentjev J.

In this paper the propagation of acoustic plane waves in turbulent, fully developed flow is studied by means of an experimental investigation carried out in a straight, smooth-walled duct.The presence of a coherent perturbation, such as an acoustic wave in a turbulent confined flow, generates the oscillation of the wall shear stress. In this circumstance a shear wave is excited and superimposed on the sound wave... (read more)

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