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

Ortmann, Judith and Wild, Jochen (2007) Effect of Acoustic Slat Modifications on Aerodynamic Properties of High-Lift Systems. Journal of Aircraft, Vol. 44 (4), pp. 1258-1263.

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Abstract

The objective of this study is the determination of the effect of brushlike devices at the slat trailing edge on the aerodynamic properties of a high-lift system. Such devices have shown promising results with respect to significant noise reduction. But up to now, the effect of these devices on the aerodynamic properties hes not been considered. This study shows that all investigated cylindrical brush hairs affect the aerodynamic properties of a high-lift system adversely, due to the influenced slat wake. But by cutting many small gaps into the slat trailing edge, resulting in brushes of rectangular cross section, the effect on the global coefficients is minor, sometimes slightliy favorable.

Item URL in elib:https://elib.dlr.de/49076/
Document Type:Article
Title:Effect of Acoustic Slat Modifications on Aerodynamic Properties of High-Lift Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ortmann, JudithUNSPECIFIEDUNSPECIFIED
Wild, JochenUNSPECIFIEDUNSPECIFIED
Date:2007
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:Vol. 44
Page Range:pp. 1258-1263
Status:Published
Keywords:brushlike devices, CFD
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Configuration Design
Deposited By: Geyr von Schweppenburg, Judith
Deposited On:18 Sep 2007
Last Modified:27 Apr 2009 13:53

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