Base pressure coefficients for flows around rectangular plates

K. Hourigan; R. Mills; M. C. Thompson; J. Sheridan; P. Dilin; M. C. Welsh

doi:10.1016/0167-6105(93)90026-K

Base pressure coefficients for flows around rectangular plates

K. Hourigan, R. Mills, M. C. Thompson, J. Sheridan, P. Dilin, M. C. Welsh

Mechanical & Aerospace Engineering

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

15 Citations (Scopus)

Abstract

The flow around long rectangular plates can be modified by acoustic forcing. The leading-edge vortex shedding is locked to the sound frequency over a broad range of flow velocities. Close to a critical acoustic Strouhal number, significant drops in the mean base pressure coefficient may occur, depending on the plate chord. It is hypothesised that the plate chord changes the position in the acoustic phase at which the leading-edge vortices arrive at the trailing edge. Interference with the trailing-edge vortex shedding may then be responsible for the significant variation in mean base pressure coefficient. This situation is not observed for flows around plates with no leading-edge shedding.

Original language	English
Pages (from-to)	311-318
Number of pages	8
Journal	Journal of Wind Engineering and Industrial Aerodynamics
Volume	49
Issue number	1-3
DOIs	https://doi.org/10.1016/0167-6105(93)90026-K
Publication status	Published - 1 Jan 1993

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abstract = "The flow around long rectangular plates can be modified by acoustic forcing. The leading-edge vortex shedding is locked to the sound frequency over a broad range of flow velocities. Close to a critical acoustic Strouhal number, significant drops in the mean base pressure coefficient may occur, depending on the plate chord. It is hypothesised that the plate chord changes the position in the acoustic phase at which the leading-edge vortices arrive at the trailing edge. Interference with the trailing-edge vortex shedding may then be responsible for the significant variation in mean base pressure coefficient. This situation is not observed for flows around plates with no leading-edge shedding.",

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AU - Hourigan, K.

AU - Mills, R.

AU - Thompson, M. C.

AU - Sheridan, J.

AU - Dilin, P.

AU - Welsh, M. C.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The flow around long rectangular plates can be modified by acoustic forcing. The leading-edge vortex shedding is locked to the sound frequency over a broad range of flow velocities. Close to a critical acoustic Strouhal number, significant drops in the mean base pressure coefficient may occur, depending on the plate chord. It is hypothesised that the plate chord changes the position in the acoustic phase at which the leading-edge vortices arrive at the trailing edge. Interference with the trailing-edge vortex shedding may then be responsible for the significant variation in mean base pressure coefficient. This situation is not observed for flows around plates with no leading-edge shedding.

AB - The flow around long rectangular plates can be modified by acoustic forcing. The leading-edge vortex shedding is locked to the sound frequency over a broad range of flow velocities. Close to a critical acoustic Strouhal number, significant drops in the mean base pressure coefficient may occur, depending on the plate chord. It is hypothesised that the plate chord changes the position in the acoustic phase at which the leading-edge vortices arrive at the trailing edge. Interference with the trailing-edge vortex shedding may then be responsible for the significant variation in mean base pressure coefficient. This situation is not observed for flows around plates with no leading-edge shedding.

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JO - Journal of Wind Engineering and Industrial Aerodynamics

JF - Journal of Wind Engineering and Industrial Aerodynamics

IS - 1-3

ER -

Base pressure coefficients for flows around rectangular plates

Abstract

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