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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, 2009-10-19 - 2009-10-22, Bremen (Germany).
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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: |
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| Date: | 19 October 2009 | ||||||||||||
| Journal or Publication Title: | AIAA | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | 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 Start Date: | 19 October 2009 | ||||||||||||
| Event End Date: | 22 October 2009 | ||||||||||||
| Organizer: | AIAA/DLR/DGLR | ||||||||||||
| 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: | 09 Mar 2009 | ||||||||||||
| Last Modified: | 24 Apr 2024 19:22 |
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