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Analysis of PIV Results Obtained for the VFE-2 65<sup>°</sup> Delta Wing Configuration at Sub- and Transonic Speeds

Konrath, Robert and Schröder, Andreas and Kompenhans, Jürgen (2006) Analysis of PIV Results Obtained for the VFE-2 65<sup>°</sup> 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 objectives of the International Vortex Flow Experiment 2 (VFE-2) are to perform new wind-tunnel tests on a delta wing by using modern measurement techniques and to compare these data with results of numerical state-of-the-art codes. In the present paper results of the second part of the VFE-2 experiments carried out at DLR Göttingen on a NASA wind tunnel model are described. These investigations comprise velocity field measurements by means of Particle Image Velocimetry (PIV). The delta wing of 65<sup>°</sup> sweep angle was equipped with sharp as well as with rounded leading edges. Two Mach numbers M = 0.4 and 0.8 and two Reynolds numbers 2 and 3 million are investigated for 10<sup>°</sup>, 13<sup>°</sup>, 20<sup>°</sup> and 25<sup>°</sup> angle of attack. PIV results are presented and the flow is described with emphasis to primary and secondary vortex formation as well as vortex breakdown. For the rounded leading edge the aerodynamics are described with regard to the transition from attached flow to the formation of an inner primary vortex and the onset of the outer primary vortex.

Item URL in elib:https://elib.dlr.de/19708/
Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:Discs 10, 11, 12 and 13 comprise this meeting
Title:Analysis of PIV Results Obtained for the VFE-2 65<sup>°</sup> Delta Wing Configuration at Sub- and Transonic Speeds
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Refereed publication:No
Open Access:No
Gold Open Access: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 (PIV), primary and secondary vortex formation, delta wing
Event Title:24th Applied Aerodynamics Conference
Event Location:San Francisco, CA (USA)
Event Type:international Conference
Event Start Date:5 June 2006
Event End Date:8 June 2006
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:30 Oct 2006
Last Modified:24 Apr 2024 19:01

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