Raffel, M. and Kompenhans, J. and Kähler, C. and Ehrenfried, K. and Willert, C. and Pengel, K. and De Gregorio, F. (1998) Instantaneous Flow Field Measurements for Propeller Aircraft and Rotorcraft Research. In: 9th International Symposium on Applications of Laser Techniques to Fluid Mechanics, I, 19.6.1-19.6.10. 9th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lissabon/Portugal, 13.-16. Juli 1998.
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This paper illustrates of instantaneous flow field measurements which were performed by the PIV group of DLR Göttingen during test campaigns in three different wind tunnel facilities of the Dutch-German Wind Tunnel foundation (DNW). The test results described first were obtained in the low speed tunnel LST in order to obtain detailed flow field information about the wake of a new high speed propeller model. The second test was performed in the transonic wind tunnel TWG in the frame of a German helicopter research project. Here the flow field above a pitching airfoil equipped with a flap driven by an integrated piezoelectric actuator has been observed with high spatial resolution. During the third test, stereoscopic flow field measurements were performed in the wake of a rotorcraft model in order to characterize the blade tip vortices at different flight conditions. The test was conducted in the 6x8m² open jet test section of the large low speed facility LLF which required observation distances exceeding 9 meters between camera and light sheet.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Instantaneous Flow Field Measurements for Propeller Aircraft and Rotorcraft Research|
|Journal or Publication Title:||9th International Symposium on Applications of Laser Techniques to Fluid Mechanics|
|Keywords:||Flow Flied Measurements, Propeller Aircraft, Rotorcraft|
|Event Title:||9th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lissabon/Portugal, 13.-16. Juli 1998|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||other|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L DT - Drehflüglertechnologien|
|DLR - Research theme (Project):||UNSPECIFIED|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||14 Jan 2010 20:25|
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