elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Hot-Gas Side Jet in a Supersonic Freestream

Stahl, Bernhard and Siebe, Frank and Gülhan, Ali (2010) Hot-Gas Side Jet in a Supersonic Freestream. Journal of Spacecraft and Rockets, 47 (6), pp. 957-965. American Institute of Aeronautics and Astronautics (AIAA).

Full text not available from this repository.

Abstract

The present paper reports on the interaction of a hot side jet in a supersonic freestream and compares the effects with results from cold-gas jet investigations. With high-speed schlieren videos, a significant enlargement of the separation area has been ascertained upstream from the hot-gas jet and quantitatively confirmed with wall pressure measurements. The schlieren videos also show a strong oscillation of the separation and bow shock. By using an algorithm that analyzes the similarity of neighboring images, the oscillation frequency of the separation and bow shock has been measured to be 11.3 kHz. As a consequence of the dominant shocks in the area in front of the jet, the hot jet plume is screened off strongly from the freestream, thus resulting in an upstream inclination. Finally, high-speed videos have revealed large-scale structures in the hot-gas jet and their convection velocities have been analyzed. According to the shocks, the large-scale structures oscillate at 11.3 kHz. Jet oscillation is thus excited by the interaction of the hot-gas jet with the freestream and not by resonances from the combustion chamber.

Item URL in elib:https://elib.dlr.de/69265/
Document Type:Article
Title:Hot-Gas Side Jet in a Supersonic Freestream
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stahl, BernhardDLRUNSPECIFIED
Siebe, FrankDLRUNSPECIFIED
Gülhan, AliDLRUNSPECIFIED
Date:2010
Journal or Publication Title:Journal of Spacecraft and Rockets
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:47
Page Range:pp. 957-965
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Series Name:Journal of Spacecraft and Rockets
Status:Published
Keywords:Side jet, supersonic flow, hot gas jet, vehicle control, experiments
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
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By:INVALID USER
Deposited On:17 Mar 2011 09:53
Last Modified:08 Mar 2018 18:45

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.