Sound generated by separated flows around bluff bodies.

A. N. Stokes, M. C. Welsh, K. Hourigan

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Abstract

In 1975 Howe published a theory of aerodynamic sound which described the interaction between flow and sound fields in terms of the vorticity and the acoustic particle velocities associated with the exited sound field. In this paper four published experimental studies of flow induced sound are interpreted in the light of this theory. The regions of flow where energy is transferred to the sound field are identified; the power is shown to depend on the phase of the sound cycle at which sections of vortical flow pass through these regions.

Original languageEnglish
Title of host publicationProceedings of the 9th Australasian Fluid Mechanics Conference
PublisherCCE Conf Management, Faculty of Arts, Univ. of Auckland
ISBN (Print)0868690902, 9780868690902
Publication statusPublished - 1 Jan 1986

Cite this

Stokes, A. N., Welsh, M. C., & Hourigan, K. (1986). Sound generated by separated flows around bluff bodies. In Proceedings of the 9th Australasian Fluid Mechanics Conference CCE Conf Management, Faculty of Arts, Univ. of Auckland.