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Effect of Level of Underexpansion on the Aeroacoustics of Sonic Free Jets

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.

Full text not available from this repository.

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/
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:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Verma, S.UNSPECIFIEDUNSPECIFIED
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:
EditorsEmail
Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR), Bonn (de)UNSPECIFIED
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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