Willert, C. and Stockhausen, G. and Klinner, J. and Beversdorff, M. and Quest, J. and Jansen, U. and Raffel, M. (2003) On the development of Doppler global velocimetry for cryogenic wind tunnels. In: ICIASF 2003 Record, pp. 2-9. IEEE. 20th International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF), Göttingen, 25-29. Aug. 2003, -. ISBN 0-7803-8189-1.
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A specially designed Doppler global velocimetry system (DGV, planar Doppler velocimetry) was tested in a high-speed cryogenic facility at Mach 0.3 to Mach 0.8 and pressures between 1.2 and 2.5 bar. The necessary seeding was achieved by injecting a mixture of gaseous nitrogen and water vapor into the dry and cold tunnel flow which then immediately formed a large amount of small ice crystals. As operational and access conditions are quite restrictive with respect to other facilities, DGV is currently considered the best choice for the non-intrusive measurement of flow fields. A comparison of DGV to the more wide-spread particle image velocimetry technique (PIV) is also given.
|Document Type:||Conference or Workshop Item (Paper)|
|Additional Information:||LIDO-Berichtsjahr=2004, monograph_id=IEEE Catalog Number: 03CH37501,|
|Title:||On the development of Doppler global velocimetry for cryogenic wind tunnels|
|Journal or Publication Title:||ICIASF 2003 Record|
|Page Range:||pp. 2-9|
|Keywords:||planar doppler velocimetry, DGV, ETW, winglet, wingtip device, seeding, ice crystals, doppler global velocimetry, PIV, particle image velocimetry|
|Event Title:||20th International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF), Göttingen, 25-29. Aug. 2003|
|Organizer:||DLR, Göttingen (Chairman R. Engler)|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Propulsion Systems|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L ER - Engine Research|
|DLR - Research theme (Project):||UNSPECIFIED|
|Location:||Köln-Porz , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
Institute of Propulsion Technology
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||06 Jan 2010 13:25|
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