Wall Adaptation and Determination of Residual Wall Interferences for a 2D and a 3D Model in the Transonic Wind Tunnel TWG of DLR.
Holst, H. and Bock, K.-W. (1997) Wall Adaptation and Determination of Residual Wall Interferences for a 2D and a 3D Model in the Transonic Wind Tunnel TWG of DLR. In: ICIASF in Monterey, Pacific Grove, California, USA., pp. 174-184. IEEE Publication 97 CH 36121, USA.. ICIASF in Monterey, Pacific Grove, California, USA, September 29 - October 2, 1997..
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The transonic wind tunnel TWG of DLR Goettingen has been modernized with respect to an improved flow quality as well as to the logistics of exchangeable test sections, operational reliability and productivity. It is presently equipped with a Laval nozzle (supersonic), a perforated test section (transonic) and a two-dimensional adaptive (subsonic) test section. The latter can perform 2D adaptive tests on wing profiles using the Cauchy integral formula for wall adaptation, as well as 2D wall adaptation for 3D models utilizing the Wedemeyer/Lamarche (VKI) procedure. For both cases the wall adaptation was successful. The 3D force results compare quite well nominally interference-free results and to results from another adaptive test section. The pressure distribution from the wing profile tests agree quite well with theoretical results. For the 3D model, residual wall interferences were determined. It was found that the wall interferences had been reduced to nearly zero on the centreline of the test section by wall adaptation. Spanwise averages of the residual wall interferences have been used for further corrections.
|Document Type:||Conference or Workshop Item (Paper)|
|Additional Information:||institution=ICIASF, LIDO-Berichtsjahr=1997,|
|Title:||Wall Adaptation and Determination of Residual Wall Interferences for a 2D and a 3D Model in the Transonic Wind Tunnel TWG of DLR.|
|Journal or Publication Title:||ICIASF in Monterey, Pacific Grove, California, USA.|
|Page Range:||pp. 174-184|
|Publisher:||IEEE Publication 97 CH 36121, USA.|
|Keywords:||adaptive testsection, two-dimensional model, threedimensional model, residual wall interference.|
|Event Title:||ICIASF in Monterey, Pacific Grove, California, USA, September 29 - October 2, 1997.|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||L SI - Versuchs- und Simulationstechniken|
|DLR - Research theme (Project):||UNSPECIFIED|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Theoretische Strömungsmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:36|
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