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Wave Drag Reduction Approach for Blunt Bodies at High Angles of Attack: Proof-of-Concept Experiments

Schülein, Erich (2007) Wave Drag Reduction Approach for Blunt Bodies at High Angles of Attack: Proof-of-Concept Experiments. 4th AIAA Flow Control Conference, 2008-06-23 - 2008-06-26,, Seattle, Washington (USA).

Full text not available from this repository.

Abstract

The present investigation is an attempt to improve the aerodynamic effectiveness of aero-spikes located at the nose of supersonic blunt bodies flying at a wide range of angles of attack. 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/51577/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Wave Drag Reduction Approach for Blunt Bodies at High Angles of Attack: Proof-of-Concept Experiments
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schülein, ErichUNSPECIFIEDUNSPECIFIED
Date:2007
Refereed publication:No
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Volume:2008-4000
Page Range:1-13,
Series Name:AIAA Paper
Status:Published
Keywords:Wave Drag, Drag Reduction, pivoting Spike, Experiment, Force Measurements, IR-Thermography
Event Title:4th AIAA Flow Control Conference
Event Location:Seattle, Washington (USA)
Event Type:international Conference
Event Dates:2008-06-23 - 2008-06-26,
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
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: Schülein, Dr.rer.nat. Erich
Deposited On:12 Jan 2009
Last Modified:15 Jan 2010 01:49

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