Computational aeroacoustic analysis of slat trailing-edge flow

Bart A. Singer; David P. Lockard; Kenneth S. Brentner; Mehdi R. Khorrami; Mert E. Berkman; Meelan Choudhari

doi:10.2514/6.1999-1802

Computational aeroacoustic analysis of slat trailing-edge flow

Bart A. Singer, David P. Lockard, Kenneth S. Brentner, Mehdi R. Khorrami, Mert E. Berkman, Meelan Choudhari

Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

27 Scopus citations

Abstract

An acoustic analysis based on the Ffowcs Williams and Hawkings equation was performed for a high-lift system. As input, the acoustic analysis used unsteady flow data obtained from a highly resolved, time-dependent, Reynolds-averaged Navier-Stokes calculation. The analysis strongly suggests that vortex shedding from the trailing edge of the slat results in a high-amplitude, high-frequency acoustic signal, similar to that which was observed in a corresponding experimental study of the high-lift system.

Original language	English (US)
Pages	13-23
Number of pages	11
DOIs	https://doi.org/10.2514/6.1999-1802
State	Published - 1999
Event	Aeroacoustics Conference and Exhibit, AIAA/CEAS 1999 - Bellevue, United States Duration: May 10 1999 → May 12 1999

Other

Other	Aeroacoustics Conference and Exhibit, AIAA/CEAS 1999
Country/Territory	United States
City	Bellevue
Period	5/10/99 → 5/12/99

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.2514/6.1999-1802

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title = "Computational aeroacoustic analysis of slat trailing-edge flow",

abstract = "An acoustic analysis based on the Ffowcs Williams and Hawkings equation was performed for a high-lift system. As input, the acoustic analysis used unsteady flow data obtained from a highly resolved, time-dependent, Reynolds-averaged Navier-Stokes calculation. The analysis strongly suggests that vortex shedding from the trailing edge of the slat results in a high-amplitude, high-frequency acoustic signal, similar to that which was observed in a corresponding experimental study of the high-lift system.",

author = "Singer, {Bart A.} and Lockard, {David P.} and Brentner, {Kenneth S.} and Khorrami, {Mehdi R.} and Berkman, {Mert E.} and Meelan Choudhari",

note = "Publisher Copyright: {\textcopyright} 1999 by the American Institute of Aeronautics and Astronautics, Inc.; Aeroacoustics Conference and Exhibit, AIAA/CEAS 1999 ; Conference date: 10-05-1999 Through 12-05-1999",

year = "1999",

doi = "10.2514/6.1999-1802",

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T1 - Computational aeroacoustic analysis of slat trailing-edge flow

AU - Singer, Bart A.

AU - Lockard, David P.

AU - Brentner, Kenneth S.

AU - Khorrami, Mehdi R.

AU - Berkman, Mert E.

AU - Choudhari, Meelan

PY - 1999

Y1 - 1999

N2 - An acoustic analysis based on the Ffowcs Williams and Hawkings equation was performed for a high-lift system. As input, the acoustic analysis used unsteady flow data obtained from a highly resolved, time-dependent, Reynolds-averaged Navier-Stokes calculation. The analysis strongly suggests that vortex shedding from the trailing edge of the slat results in a high-amplitude, high-frequency acoustic signal, similar to that which was observed in a corresponding experimental study of the high-lift system.

AB - An acoustic analysis based on the Ffowcs Williams and Hawkings equation was performed for a high-lift system. As input, the acoustic analysis used unsteady flow data obtained from a highly resolved, time-dependent, Reynolds-averaged Navier-Stokes calculation. The analysis strongly suggests that vortex shedding from the trailing edge of the slat results in a high-amplitude, high-frequency acoustic signal, similar to that which was observed in a corresponding experimental study of the high-lift system.

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T2 - Aeroacoustics Conference and Exhibit, AIAA/CEAS 1999

Y2 - 10 May 1999 through 12 May 1999

ER -

Computational aeroacoustic analysis of slat trailing-edge flow

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