Deyhle, H. and Höhler, G. and Bippes, H. (1993) Experimental Investigation of Instablility Wave Propagation in a 3-D Boundary-Layer Flow. AIAA-Journal, Dr. George W. Sutton, Editor-in Chief,.
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Wave propagation phenomena in 3-d boundary-layer flows with crossflow instability were investigated experimentally. A 10 element hot-film sensor was flush-mounted on a rotatable insert in a swept flate plate with imposed favourable pressure gradient. By means of cross spectral analysis it was possible to obtain direction and magnitude of the phase velocity and the group velocity of the traveling instability waves, thus filling a gap in the know-ledge of crossflow instability characteristics. The waves were found to propagate approximately normal to the portential streamline direction, according to linear theory. Phase velocity and the resulting wavelengths also agree satisfactorily, whereas the measured direction and magnitude of the group velocity shows significant differences.
|Title:||Experimental Investigation of Instablility Wave Propagation in a 3-D Boundary-Layer Flow.|
|In ISI Web of Science:||Yes|
|Publisher:||AIAA-Journal, Dr. George W. Sutton, Editor-in Chief,|
|Keywords:||Dreidimensionale Grenzschicht, Querstroemungsinstabilitaet, Wellenausbreitung|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||other|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||L ST - Starrflüglertechnologien|
|DLR - Research theme (Project):||UNSPECIFIED|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 08:07|
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