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Effects of steady flow heating by arc discharge upstream of non-slender bodies

Schülein, Erich and Zheltovodov, Alexander (2011) Effects of steady flow heating by arc discharge upstream of non-slender bodies. Shock Waves, Vol. 21 (4), pp. 383-396. Springer. DOI: 10.1007/s00193-011-0307-1 ISSN 0938-1287

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Official URL: http://www.springer.com

Abstract

Influence of steady energy addition into the flow by low-voltage DC-arc discharge located upstream of conically-nosed and spherically-blunted bodies was investigated experimentally in the Ludwieg-Tube Facility at Mach 5. The results include drag force measurements and shadowgraph flow visualizations. The flow-field structure, arising due to the bow-shock / heated-wake interaction, as well as the bow-shock intensity and heating power effects on the drag reduction are analyzed in this paper. The results demonstrate the existence of an optimum heating rate, providing a maximum effectiveness of energy addition and showing a distinct drag reductions up to 70% dependent on test conditions and model geometries.

Item URL in elib:https://elib.dlr.de/57047/
Document Type:Article
Additional Information:Published online: 26 February 2011
Title:Effects of steady flow heating by arc discharge upstream of non-slender bodies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Zheltovodov, Alexanderzhelt (at) itam.nsc.ruUNSPECIFIED
Date:2011
Journal or Publication Title:Shock Waves
Refereed publication:Yes
Open Access:No
In DOAJ:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Vol. 21
DOI :10.1007/s00193-011-0307-1
Page Range:pp. 383-396
Publisher:Springer
ISSN:0938-1287
Status:Published
Keywords:Bow shock, Wave drag, Shock-wave/heated-wake interaction, Recirculation bubble, Flow unsteadiness
HGF - Research field:Aeronautics, Space and Transport
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:19 Dec 2008
Last Modified:10 Jan 2019 15:50

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