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Formation Flight of Low-Aspect-Ratio Wings at Low Reynolds Number

Korkischko, Ivan and Konrath, Robert (2017) Formation Flight of Low-Aspect-Ratio Wings at Low Reynolds Number. Journal of Aircraft, 54 (3), pp. 1025-1034. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.C033941. ISSN 0021-8669.

Full text not available from this repository.

Official URL: http://arc.aiaa.org/doi/pdf/10.2514/1.C033941


This paper examines the application of formation flight to micro air vehicles with regard to possible power savings. Results of an experimental investigation on echelon formations using low-aspect-ratio (AR = 2) flat plate rectangular wings at low Reynolds number (Re 35;000) are presented. One-, two-, and three-wing configurations are tested in a low-speed wind tunnel. To quantify the power savings by lift enhancement and drag reduction, the aerodynamic loads acting on each wing are measured using specific balances while the trailing wings of the formation are being traversed laterally and vertically in fine steps. In addition, the flowfields of the wing wakes are measured using particle Image velocimetry. The force and flowfield measurements show that the optimal positions for lift enhancement appear at slightly spanwise overlapping between the leading and trailing wings.

Item URL in elib:https://elib.dlr.de/104711/
Document Type:Article
Additional Information:published online 2 November 2016
Title:Formation Flight of Low-Aspect-Ratio Wings at Low Reynolds Number
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Konrath, Robertrobert.konrath (at) dlr.deUNSPECIFIED
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.2514/1.C033941
Page Range:pp. 1025-1034
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:MAV, Low Reynolds Number, Formation Flight
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Bachmann, Barbara
Deposited On:12 Jan 2017 16:20
Last Modified:08 Mar 2018 18:41

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