Low-level flow-induced acoustic resonances in ducts

M. Mathias; A. N. Stokes; K. Hourigan; M. C. Welsh

doi:10.1016/0169-5983(88)90091-3

Low-level flow-induced acoustic resonances in ducts

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

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

7 Citations (Scopus)

Abstract

Acoustic resonances are generated by air moving past a plate with a semi-circular leading edge located in a duct. The sound stimulates the small separation bubble near the leading edge to shed vortices into the boundary layer at the sound frequency. The acoustic energy required to sustain the resonances is generated as these vortices pass the trailing edge of the plate.

Original language	English
Pages (from-to)	353-356
Number of pages	4
Journal	Fluid Dynamics Research
Volume	3
Issue number	1-4
DOIs	https://doi.org/10.1016/0169-5983(88)90091-3
Publication status	Published - 1 Sept 1988
Externally published	Yes

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title = "Low-level flow-induced acoustic resonances in ducts",

abstract = "Acoustic resonances are generated by air moving past a plate with a semi-circular leading edge located in a duct. The sound stimulates the small separation bubble near the leading edge to shed vortices into the boundary layer at the sound frequency. The acoustic energy required to sustain the resonances is generated as these vortices pass the trailing edge of the plate.",

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AU - Stokes, A. N.

AU - Hourigan, K.

AU - Welsh, M. C.

PY - 1988/9/1

Y1 - 1988/9/1

N2 - Acoustic resonances are generated by air moving past a plate with a semi-circular leading edge located in a duct. The sound stimulates the small separation bubble near the leading edge to shed vortices into the boundary layer at the sound frequency. The acoustic energy required to sustain the resonances is generated as these vortices pass the trailing edge of the plate.

AB - Acoustic resonances are generated by air moving past a plate with a semi-circular leading edge located in a duct. The sound stimulates the small separation bubble near the leading edge to shed vortices into the boundary layer at the sound frequency. The acoustic energy required to sustain the resonances is generated as these vortices pass the trailing edge of the plate.

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VL - 3

SP - 353

EP - 356

JO - Fluid Dynamics Research

JF - Fluid Dynamics Research

IS - 1-4

ER -

Low-level flow-induced acoustic resonances in ducts

Abstract

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