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Verma, S. (2002) Effect of Level of Underexpansion on the Aeroacoustics of Sonic Free Jets. In: DGLR Jahrbuch 2002, II, pp. 921-927. DGLR. Deutscher Luft- und Raumfahrtkongress, Stuttgart, 23. - 26. September 2002.
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Abstract
An experimental investigation was carried out to stud the change in the shock-structure and the related acoustic field on an underexpanded 2:1 elliptic-slot jet in response to changes in level of underexpansion. Tests were made for jets operating at equivalent. Mach number (Mj) in the range of 1.3 to 2.0. The difference in jet growth along the two planes of an elliptic jet causes a series of bouncing expansion and compression waves to generate a non-symmetric structure of shock-cells, in which the flow changes direction in a non-symmetric pattern, that leads to a variation in the instability characteristics around their circumference.
| Item URL in elib: | https://elib.dlr.de/1612/ | ||||||
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| Document Type: | Conference or Workshop Item (Paper) | ||||||
| Additional Information: | LIDO-Berichtsjahr=2003, monograph_id=DGLR-2002-237, | ||||||
| Title: | Effect of Level of Underexpansion on the Aeroacoustics of Sonic Free Jets | ||||||
| Authors: |
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| Date: | 2002 | ||||||
| Journal or Publication Title: | DGLR Jahrbuch 2002 | ||||||
| Open Access: | No | ||||||
| Gold Open Access: | No | ||||||
| In SCOPUS: | No | ||||||
| In ISI Web of Science: | No | ||||||
| Volume: | II | ||||||
| Page Range: | pp. 921-927 | ||||||
| Editors: |
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| Publisher: | DGLR | ||||||
| Status: | Published | ||||||
| Event Title: | Deutscher Luft- und Raumfahrtkongress, Stuttgart, 23. - 26. September 2002 | ||||||
| Organizer: | Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR), Bonn (de) | ||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||
| HGF - Program: | Space (old) | ||||||
| HGF - Program Themes: | W RP - Raumtransport | ||||||
| DLR - Research area: | Space | ||||||
| DLR - Program: | W RP - Raumtransport | ||||||
| DLR - Research theme (Project): | E - no assignment | ||||||
| Location: | Lampoldshausen | ||||||
| Institutes and Institutions: | Institute of Space Propulsion | ||||||
| Deposited By: | Lohmiller, Monika | ||||||
| Deposited On: | 16 Sep 2005 | ||||||
| Last Modified: | 06 Jan 2010 14:02 |
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