Computational aeroacoustic analysis of slat trailing-edge flow | Zendy

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

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Computational aeroacoustic analysis of slat trailing-edge flow

Author(s) -

Bart A. Singer,

David P. Lockard,

Kenneth S. Brentner,

Mehdi R. Khorrami,

Mert E. Berkman,

Meelan M. Choudhari

Publication year - 1999

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1999-1802

Subject(s) - trailing edge , acoustics , flow (mathematics) , computer science , geology , physics , mechanics

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 ow data obtained from a highly resolved, time-dependent, Reynolds-averaged Navier-Stokes calculation. The analysis strongly suggests that vor-tex shedding from the trailing edge of the slat results in a high-amplitude, high-frequency acoustic signal, similar to that which w as observed in a corresponding experimental study of the high-lift system.

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