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Visualization and Acquisition of Quantified Density Data of the Rotor Blade Tip Vortex

Hernandez, Ricardo and Heine, Benjamin and Schneider, Oliver and Chernukha, Polina and Raffel, Markus (2010) Visualization and Acquisition of Quantified Density Data of the Rotor Blade Tip Vortex. 17. DGLR-Fach-Symposium der STAB, 09.-10. Nov. 2010, Berlin, Deutschland.

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Official URL: http://www.dlr.de/as/desktopdefault.aspx/tabid-652/1104_read-1678/


In this paper, flow visualization of the blade vortices of four-bladed Mach-scaled rotor, as used in the ONERA-DLR ABC project (Active Blade Concept) in hover flight condition, were investigated experimentally by means of Background Oriented Schlieren method (BOS). For BOS setup, a high-speed camera with a resolution of 4 Mpx was used with pulsed LED-illumination in order to illuminate a reflective background. In addition, the influence of a flap mounted at the blade trailing edge, from 80% to 90% radius at different angles of deflections, on the density field of the blade tip vortex was studied. In order to compute the density field of the compressible vortex, tomographic reconstruction was applied to the BOS data.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Visualization and Acquisition of Quantified Density Data of the Rotor Blade Tip Vortex
AuthorsInstitution or Email of Authors
Hernandez, RicardoUNSPECIFIED
Heine, BenjaminUNSPECIFIED
Schneider, OliverUNSPECIFIED
Chernukha, PolinaUNSPECIFIED
Date:November 2010
Refereed publication:No
In ISI Web of Science:No
Keywords:BOS, Active Blade Concept, LED-illumination, tomographic reconstruction
Event Title:17. DGLR-Fach-Symposium der STAB
Event Location:Berlin, Deutschland
Event Type:national Conference
Event Dates:09.-10. Nov. 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Active Rotorcraft (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Flight Systems > Rotorcraft
Deposited By: Elisabeth Winkels
Deposited On:23 Nov 2010 10:57
Last Modified:23 Nov 2010 10:57

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