Schülein, Erich (2008) Wave Drag Reduction Approach for Blunt Bodies at High Angles of Attack. DLR-Interner Bericht. DLR-IB 224 - 2008 A 18. 19 S.
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Kurzfassung
Proof-of-concept experiments for a spike aligned into the oncoming flow at the nose of a supersonic blunt body were performed to investigate its aerodynamic effectiveness over a wide range of body's angles of attack. The investigations have been conducted in the Ludwieg Tube Facility at DLR Göttingen at Mach 2, 3 and 5 for angles of attack from 0 to 30 degrees. The model tested is a cylindrical body with a hemispherical nose. Additionally to the body equipped with an aligned spike, a reference body without a spike and a body with a conventional fixed spike were investigated. Furthermore, a test model with a prototype of a pivoting self-aligning spike-device has also been investigated. The results containing shadowgraph visualizations, direct force measurements and infrared heat flux measurements show the clear advantages of the spikes aligned into the flow.
elib-URL des Eintrags: | https://elib.dlr.de/56566/ | ||||||||
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Dokumentart: | Berichtsreihe (DLR-Interner Bericht) | ||||||||
Titel: | Wave Drag Reduction Approach for Blunt Bodies at High Angles of Attack | ||||||||
Autoren: |
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Datum: | 1 Juni 2008 | ||||||||
Open Access: | Nein | ||||||||
Seitenanzahl: | 19 | ||||||||
Verlag: | DLR Göttingen | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | Bow Shock, Wave Drag, Supersonic, Spike | ||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||
HGF - Programm: | Luftfahrt | ||||||||
HGF - Programmthema: | Starrflügler (alt) | ||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||
DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Militärische Technologien (alt) | ||||||||
Standort: | Göttingen | ||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hochgeschwindigkeitskonfigurationen | ||||||||
Hinterlegt von: | Schülein, Dr.rer.nat. Erich | ||||||||
Hinterlegt am: | 04 Dez 2008 | ||||||||
Letzte Änderung: | 15 Jan 2010 00:37 |
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