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Experimental Investigation of Transverse Jet Interaction on a Missile Body Using Laser Velocimetry and Flow Visualization

Schäfer, H. J. and Augenstein, E. and Esch, H. and Emunds, H. (2001) Experimental Investigation of Transverse Jet Interaction on a Missile Body Using Laser Velocimetry and Flow Visualization. ICIASF, Cleveland, 27.-30.8.2001.

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Abstract

An experimental investigation of the interaction between a lateral jet issuing from a missile body and the oncoming external flow is presented. The experiments were carried out in the ISL supersonic blow-down wind tunnel at a Mach number of 3. The test model was a cone-cylinder-flare body with a side-jet nozzle located on the cylindrical section, representing a simple generic high-speed missile configuration. For this study, three distinct flow conditions were chosen which are characterized by a jet ejection pressure ratio of 50, 70 and 97, respectively. Flow velocity measurements were performed with the aid of a two-component laser Doppler velocimeter (LDV). In addition, flow visualization techniques were used in order to confirm the LDV results. Combined with previous surface pressure measurements, the present investigation yields a consistent picture of the jet-induced flow field comprising a separation zone and various shock waves upstream from the jet exit. This detailed knowledge of the flow structure is required for evaluating the performance of lateral jet control systems.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Experimental Investigation of Transverse Jet Interaction on a Missile Body Using Laser Velocimetry and Flow Visualization
Authors:
AuthorsInstitution or Email of Authors
Schäfer, H. J.UNSPECIFIED
Augenstein, E.UNSPECIFIED
Esch, H.UNSPECIFIED
Emunds, H.UNSPECIFIED
Date:2001
Status:Published
Event Title:ICIASF, Cleveland, 27.-30.8.2001
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: elib DLR-Beauftragter
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 21:04

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