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Schülein, Erich (2010) Shock-wave control by permeable wake generators. 5th AIAA Flow Control Conference, 2010-06-28 - 2010-07-01, Chicago, Illinois, USA. ISBN 978-1-60086-745-3 .
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Official URL: http://pdf.aiaa.org/preview/2010/CDReadyMFD10_2119/PV2010_4977.pdf
Abstract
Feasibility experiments for shock-wave control by small permeable wake generators were performed in the supersonic Ludwieg Tube Facility at DLR Göttingen. In order to improve the shock-control effectiveness novel micro-perforated or porous PWG devices shaped similar to a wind-cone are investigated in the present work. In the first part, the working principle and the induced wake-flow peculiarities are discussed. A simplified gas-dynamic model of the flow around an isolated permeable device is applied for wake-flow calculation at different generator geometries and porosities. The preliminary validation of this model was made by the cross-sectional wake extension obtained in the wind-tunnel tests. In the main part, effects of PWG-devices attached to a rod in front of a blunt body on its drag and heating rates at Mach numbers of 2, 3 and 5 are analyzed. Flow-field shadowgrams, drag-force and heat-flux measurements are used to quantify these effects. The results show clear advantages of the investigated permeable flow-control devices in comparison to the solid aero-discs and aero-spikes.
| Item URL in elib: | https://elib.dlr.de/60455/ | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||
| Title: | Shock-wave control by permeable wake generators | ||||||||
| Authors: |
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| Date: | 14 June 2010 | ||||||||
| Refereed publication: | No | ||||||||
| Open Access: | No | ||||||||
| Gold Open Access: | No | ||||||||
| In SCOPUS: | No | ||||||||
| In ISI Web of Science: | No | ||||||||
| Page Range: | pp. 1-21 | ||||||||
| Series Name: | DVD-ROM Conference Proceedings, Online | ||||||||
| ISBN: | 978-1-60086-745-3 | ||||||||
| Status: | Published | ||||||||
| Keywords: | Flow control, transsonic, supersonic, shock wave, experiment | ||||||||
| Event Title: | 5th AIAA Flow Control Conference | ||||||||
| Event Location: | Chicago, Illinois, USA | ||||||||
| Event Type: | international Conference | ||||||||
| Event Start Date: | 28 June 2010 | ||||||||
| Event End Date: | 1 July 2010 | ||||||||
| Organizer: | AIAA | ||||||||
| 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: | 16 Aug 2010 12:48 | ||||||||
| Last Modified: | 24 Apr 2024 19:25 |
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