Konrath, Robert and Carmer v., Carl F. (2008) Towing tank PIV measurements on 2- and 4-vortex systems IGE. Project Report. FAR-WAKE TR 3.1.2-2. 22 S.
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Abstract
The present report is part of the WP 3 “Wake evolution near the ground” of the FarWake project. Experimental investigations were performed in the tow tank at Göttingen to describe spatial-temporal flow evolution of 2- and 4-vortex systems in ground effect (IGE). The F13 model consisting of one or two rectangular wings is used as vortex generator and is towed along a ground plate at specific heights h/b = 0.5, 0.25, 0.125. In case of the 4-vortex system a span width ratio of b2/b1 = 0.3 and circulation ratios of Γ2/Γ1 = ± 0.3 are considered; i.e. co- and counter-rotating vortex pairs. A Stereo Particle Image Velocimetry setup is employed to determine the flow velocity fields in a cross plane. The flow fields are analysed with respect to flow separation at the ground, the generation of secondary vortices, the spatial-temporal development of the vortex trajectories and vortex circulation.
Item URL in elib: | https://elib.dlr.de/53898/ | |||||||||
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Document Type: | Monograph (Project Report) | |||||||||
Title: | Towing tank PIV measurements on 2- and 4-vortex systems IGE | |||||||||
Authors: |
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Date: | 2008 | |||||||||
Refereed publication: | No | |||||||||
Open Access: | No | |||||||||
Gold Open Access: | No | |||||||||
In SCOPUS: | No | |||||||||
In ISI Web of Science: | No | |||||||||
Number of Pages: | 22 | |||||||||
Status: | Published | |||||||||
Keywords: | Stereo-PIV, PIV image calibration | |||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||
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: | 01 Dec 2008 | |||||||||
Last Modified: | 27 Apr 2009 14:54 |
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