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Wave drag reduction concept for blunt bodies at high angles of attack

Schülein, Erich (2009) Wave drag reduction concept for blunt bodies at high angles of attack. In: Shock Waves Springer Verlag, Berlin Heidelberg. pp. 1315-1320. doi: 10.1007/978-3-540-85181-3. ISBN 978-3-540-85180-6.

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The present investigation is an attempt to improve the aerodynamic effectiveness of aero-spikes aerospike@aero-spike located at the nose of supersonic blunt bodies flying at a wide range of angles of attack (AoA). For this purpose, the use of pivoting spikes, which can maintain their favorable alignment relative to the incoming flow independent from the body’s orientation, is proposed. The proof-of-concept experiments for the pivoting spikes 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 a pivoting spike the reference body without a spike and the body with a conventional fixed spike were investigated. The results containing shadowgraph visualizations, direct force measurements and infrared heat flux measurements show the clear adventages of the pivoting spikes.

Item URL in elib:https://elib.dlr.de/95983/
Document Type:Contribution to a Collection
Additional Information:e-ISBN: 978-3-540-85181-3
Title:Wave drag reduction concept for blunt bodies at high angles of attack
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schülein, Ericherich.schülein (at) dlr.deUNSPECIFIED
Journal or Publication Title:Shock Waves
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/978-3-540-85181-3
Page Range:pp. 1315-1320
EditorsEmailEditor's ORCID iD
Publisher:Springer Verlag, Berlin Heidelberg
Keywords:Wave drag, blunt bodies, shock waves, shadowgraph visualizations
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:17 Apr 2015 14:30
Last Modified:17 Apr 2015 14:30

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