elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Experimental and Numerical Investigations on Waveriders in Different Flight Regimes

Hummel, D. und Blaschke, R.C. und Eggers, T. und Strohmeyer, D. (1998) Experimental and Numerical Investigations on Waveriders in Different Flight Regimes. In: 21st Congress of the International Council of the Aeronautical Sciences. 21. ICAS Congress 1998, Melbourne (au), 13.-18.09.1998.

Dieses Archiv kann nicht den gesamten Text zur Verfügung stellen.

Kurzfassung

A waverider configuration named DLR-F8 has been generated at M* = 12.0 with practicle distributions of chamber and volume. The investigations on this geometry comprise both experimental and numerical studies in the whole flow regime from subsonic up to hypersonic Mach numbers. In hypersonic flow the performance characteristics remained constant in a wide range of Mach numbers. If the shock detaches from the leading edge L/D increases by expansion flow or by leading edge vortices on the upper surface. The leading edge bluntness can be minimized in order to avoid a significant increase of wave drag and thermal loading can be handled by a proper combination of material and structural design. In the transonic flow regime the highest L/D is achieved. The performance characteristics are dominated by leading edge vortices on the upper surface, and the moment of the terminating shock leads to considerable changes in the centre of pressure position. In incompressible flow a complex vortex structure exists on the upper surface which is distinctly different from that on delta wings. In the vortex centre exists a region of reduced velocity which is due to the leading edge curvature in the front part of the waverider. The Euler and Navier-Stokes codes used in the present studies are powerful tools to predict the flow around the configuration in the whole Mach number range.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen: LIDO-Berichtsjahr=1999,
Titel:Experimental and Numerical Investigations on Waveriders in Different Flight Regimes
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hummel, D.TU Braunschweig
Blaschke, R.C.TU Braunschweig
Eggers, T.NICHT SPEZIFIZIERT
Strohmeyer, D.NICHT SPEZIFIZIERT
Datum:1998
Erschienen in:21st Congress of the International Council of the Aeronautical Sciences
Status:veröffentlicht
Stichwörter:Waverider, aerodynamics, subsonic, transonic and supersonic flow, wind tunnel experiments, Navier-Stokes Calculations
Veranstaltungstitel:21. ICAS Congress 1998, Melbourne (au), 13.-18.09.1998
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):W - Grundlagen Raumtransport - Anlagen und Messtechnik (alt)
Standort: Köln-Porz , Braunschweig , Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Institut für Entwurfsaerodynamik
Hinterlegt von: Claudia Grant
Hinterlegt am:16 Sep 2005
Letzte Änderung:14 Jan 2010 19:57

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.