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Towing tank PIV measurements on 2- and 4-vortex systems IGE

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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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/
Document Type:Monograph (Project Report)
Title:Towing tank PIV measurements on 2- and 4-vortex systems IGE
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Refereed publication:No
Open Access:No
Number of Pages:22
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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