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Experimental investigation of hot and cold side jet interaction with a supersonic cross-flow

Stahl, Bernhard and Emunds, Hans and Gülhan, Ali (2009) Experimental investigation of hot and cold side jet interaction with a supersonic cross-flow. Aerospace Science and Technology, 13 (8), pp. 488-496. Elsevier Masson SAS. DOI: 10.1016/j.ast.2009.08.002. ISSN 1270-9638.

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Official URL: http://dx.doi.org/10.1016/j.ast.2009.08.002


This paper reports on experimental aerodynamic investigations on a high-speed missile with side jet control especially with regard to the interaction of cold and hot side jets with supersonic cross-flow. The hot jets were generated with solid propellants. To analyze the effect of the hot jet in relation to side jet control, wall pressure distributions were measured in the area of jet interaction. As a test parameter, the jet pressure ratio was varied and schlieren images were taken to visualize the shocks. In additon, the development of large-scale vortex structures on hot gas jets was detected with high-speed videos. The frame sequences show periodical turbulent jet structures and permit the manual evaluation of their spatial distribution. Analyzing the images, the convection velocities of the large-scale structures and their convection angles were determined. The convection velocities reach the magnitude of cross-flow velocity shortly behind the hot jet exit.

Document Type:Article
Additional Information:December 2009
Title:Experimental investigation of hot and cold side jet interaction with a supersonic cross-flow
AuthorsInstitution or Email of Authors
Stahl, BernhardDLR
Gülhan, AliAli.Guelhan@dlr.de
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 488-496
Publisher:Elsevier Masson SAS
Keywords:Hot side jet, Supersonic cross flow, Large-scale structures, Convection velocities
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: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Christine Adams
Deposited On:25 Jan 2010 15:35
Last Modified:31 Mar 2015 15:09

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