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Background-Oriented Schlieren Imaging for Full-Scale and In-Flight Testing

Raffel, Markus and Heineck, James T. and Schairer, Edward T. and Leopold, Friedrich and Kindler, Kolja (2014) Background-Oriented Schlieren Imaging for Full-Scale and In-Flight Testing. Journal of the American Helicopter Society, 59 (1), pp. 1-9. American Helicopter Society. doi: 10.4050/JAHS.59.012002. ISSN 0002-8711.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.4050/JAHS.59.012002


Background-oriented schlieren (BOS) methods suited for large-scale and in-flight testing are presented with special emphasis on the detection and tracing of blade tip vortices in situ. Retroreflective recording and photogrammetric epipolar analysis for the computation of the vortices’ spatial coordinates in the wind tunnel are described. Feasibility and fidelity of referencefree BOS in conjunction with natural formation backgrounds and related evaluation methods are discussed, additionally, illustrating their simplicity and robustness. Results of successful image acquisition from a chaser aircraft are presented allowing vortex wakes to be identified at a wide range of flight attitudes, including complex maneuvers.

Item URL in elib:https://elib.dlr.de/87234/
Document Type:Article
Additional Information:Online available: 27. Dezember 2013, January 2014
Title:Background-Oriented Schlieren Imaging for Full-Scale and In-Flight Testing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Raffel, Markusmarkus.raffel (at) dlr.deUNSPECIFIED
Heineck, James T.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Schairer, Edward T.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Leopold, FriedrichInstitute Franco-Allemand de Recherche de Saint-Luis (ISL)UNSPECIFIED
Kindler, Koljakolja.kindler (at) dlr.deUNSPECIFIED
Journal or Publication Title:Journal of the American Helicopter Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.4050/JAHS.59.012002
Page Range:pp. 1-9
Publisher:American Helicopter Society
Keywords:Background-oriented schlieren, blade tip vortices, in-flight testing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft (old)
Location: Göttingen , Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Division of the Chair of the Executive Board > Office of the Executive Board
Deposited By: Micknaus, Ilka
Deposited On:08 Jan 2014 10:09
Last Modified:08 Mar 2018 18:45

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