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Effect of Acoustic Slat Modifications on Aerodynamic Properties of High-Lift Systems

Ortmann, Judith and Wild, Jochen (2006) Effect of Acoustic Slat Modifications on Aerodynamic Properties of High-Lift Systems. In: AIAA-2006-3842. 24th AIAA Applied Aerodynamics Conference, 2006-06-05 - 2006-06-08, San Francisco, CA (USA).

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Abstract

The objective of this document is the determination of the effect of brush-like devices at the slat trailing edge on the aerodynamic properties of a high-lift system. Such devices show promising results with respect to significant noise reduction. But, up to now the effect of these devices on the aerodynamic properties have not been considered. This study shows that all investigated cylindrical brush hairs affect the aerodynamic properties of a high-lift system adversely since the influenced slat wake reduces the aerodynamic performance. But, cutting many small gaps into the slat trailing edge, resulting in brushes of rectanular cross section, the effect on the global coefficients is minor, sometimes slightly favourable.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Effect of Acoustic Slat Modifications on Aerodynamic Properties of High-Lift Systems
Authors:
AuthorsInstitution or Email of Authors
Ortmann, JudithUNSPECIFIED
Wild, JochenUNSPECIFIED
Date:June 2006
Journal or Publication Title:AIAA-2006-3842
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:noise reduction devices, slat trailing edge, CFD
Event Title:24th AIAA Applied Aerodynamics Conference
Event Location:San Francisco, CA (USA)
Event Type:international Conference
Event Dates:2006-06-05 - 2006-06-08
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Configuration Design
Deposited By: Judith Geyr von Schweppenburg
Deposited On:31 Jan 2007
Last Modified:12 Dec 2013 20:23

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