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Effects of Localized Flow Heating by DC-Arc Discharge Ahead of Non-Slender Bodies

Schülein, Erich and Zheltovodov, Alexander A. (2009) Effects of Localized Flow Heating by DC-Arc Discharge Ahead of Non-Slender Bodies. In: AIAA (AIAA-2009-7346), pp. 1-16. 16th AIAA/DLR/DGLR International Space Planes and Hypersonic Systems and Technologies Conference, 19.-22. Oct. 2009, Bremen (Germany).

Full text not available from this repository.

Abstract

The 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 effects of bow-shock intensity and heating power variation on the drag reduction of different non-slender bodies are analyzed in this paper. The results demonstrate the existence of an optimum heating rate providing a maximum effectiveness of energy deposition and show distinct drag reductions up to 70% dependent on the test conditions and model geometry.

Item URL in elib:https://elib.dlr.de/58248/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Effects of Localized Flow Heating by DC-Arc Discharge Ahead of Non-Slender Bodies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Zheltovodov, Alexander A.zhelt (at) itam.nsc.ruUNSPECIFIED
Date:19 October 2009
Journal or Publication Title:AIAA
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-16
Series Name:AIAA-Paper
Status:Published
Keywords:wave drag, bow shock wave, energy deposition, arc-induced heating
Event Title:16th AIAA/DLR/DGLR International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Bremen (Germany)
Event Type:international Conference
Event Dates:19.-22. Oct. 2009
Organizer:AIAA/DLR/DGLR
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:09 Mar 2009
Last Modified:26 Oct 2009 13:51

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