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Application of Stereo PIV to the VFE-2 65° Delta Wing Configuration at Sub- and Transonic Speeds

Konrath, Robert and Schröder, Andreas and Agocs, Janos and Frahnert, Holger and Otter, Dirk and Mattner, Hartmut and Kompenhans, Jürgen (2006) Application of Stereo PIV to the VFE-2 65° Delta Wing Configuration at Sub- and Transonic Speeds. American Institute of Aeronautics and Astronautics. 24th Applied Aerodynamics Conference, 2006-06-05 - 2006-06-08, San Francisco, CA (USA). ISBN 1-56347-798-X.

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Official URL: http://www.aiaa.org


The present paper describes the application of Particle Image Velocimetry (PIV) to the flow around a delta wing in a pressurized transonic wind tunnel. These investigations are the second part of International Vortex Flow Experiment 2 (VFE-2) measurements carried out at DLR Göttingen on a NASA wind tunnel model. The first part comprised surface pressure measurements by means of Pressure Sensitive Paint. These results were used to select the test cases for PIV. Flow fields for the Mach numbers of 0.4 and 0.8 and for the Reynolds numbers of 2 and 3 million at four incidences of 11, 13, 20 and 25 degree were captured within different planes perpendicular to the model axis. Delta wings with sharp as well as with rounded leading edges were investigated. Details of the stereoscopic PIV system such as the overall arrangement, the image evaluation and the flow seeding technique will be described. Techniques to overcome problems caused by density changes within the wind tunnel are described too, such as deflections of the laser light beam and camera viewing. Laser light flare on the model surface is reduced by a specially developed fluorescent paint which allows for the detection of small flow structures very close to the model surface.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:Disc 10, 11, 12 and 13 comprise this meeting
Title:Application of Stereo PIV to the VFE-2 65° Delta Wing Configuration at Sub- and Transonic Speeds
AuthorsInstitution or Email of Authors
Konrath, RobertUNSPECIFIED
Schröder, AndreasUNSPECIFIED
Frahnert, HolgerUNSPECIFIED
Mattner, HartmutUNSPECIFIED
Kompenhans, JürgenUNSPECIFIED
Refereed publication:No
In ISI Web of Science:No
Volume:Vol. 11, No. 10-13
Publisher:American Institute of Aeronautics and Astronautics
Series Name:AIAA Meeting Papers on Disc
Keywords:Particle Image Velocimetry, Pressure Sensitive Paint, VFE
Event Title:24th Applied Aerodynamics Conference
Event Location:San Francisco, CA (USA)
Event Type:international Conference
Event Dates:2006-06-05 - 2006-06-08
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:30 Oct 2006
Last Modified:27 Apr 2009 13:07

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