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Slat Noise Simulations: Status and ChallengesNoise radiation from the leading edge slat of a high-lift system is known to be an important component of aircraft noise during approach. NASA's Langley Research Center is engaged in a coordinated series of investigations combining high-fidelity numerical simulations and detailed wind tunnel measurements of a generic, unswept, 3-element, high-lift configuration. The goal of this effort is to provide a validated predictive capability that would enable identification of the dominant noise source mechanisms and, ultimately, help develop physics inspired concepts for reducing the far-field acoustic intensity. This paper provides a brief overview of the current status of the computational effort and describes new findings pertaining to the effects of the angle of attack on the aeroacoustics of the slat cove region. Finally, the interplay of the simulation campaign with the concurrently evolving development of a benchmark dataset for an international workshop on airframe noise is outlined.
Document ID
20110015496
Document Type
Conference Paper
Authors
Choudhari, Meelan M. (NASA Langley Research Center Hampton, VA, United States)
Lockard, David P. (NASA Langley Research Center Hampton, VA, United States)
Khorrami, Mehdi R. (NASA Langley Research Center Hampton, VA, United States)
Mineck, Raymond E. (Vigyan Research Associates, Inc. Hampton, VA, United States)
Date Acquired
August 25, 2013
Publication Date
September 4, 2011
Subject Category
Acoustics
Report/Patent Number
NF1676L-12223
Meeting Information
Inter-Noise 2011(Osaka)
Funding Number(s)
WBS: WBS 561581
Distribution Limits
Public
Copyright
Public Use Permitted.

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