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Experimental Investigations on the Influence of Ingesting Boundary Layers into a Diverterless S‐Duct Intake

Rein, Martin and Koch, Stefan and Rütten, Markus (2014) Experimental Investigations on the Influence of Ingesting Boundary Layers into a Diverterless S‐Duct Intake. 52nd Aerospace Sciences Meeting - AIAA SciTech, 13. - 17. Jan. 2014, National Harbor, Maryland, USA.

Full text not available from this repository.

Official URL: http://arc.aiaa.org | DOI: 10.2514/6.2014-0373


An experimental study of the combined effects of boundary layer ingestion and an Sduct diffuser on flow conditions at the engine face is presented. A main focus of the investigations is on the impact of boundary layers on intake performance and on limitations of diverterless intakes due to boundary layer ingestion. The dependence of total pressure distortions on flow parameters has been examined in a parametric study in a blow-down wind tunnel. The free-stream Mach number was varied between M = 0.30 and M = 0.65. In order to form a boundary layer of well-defined thickness ahead of the intake the model is arranged on a flat plate. In the introduction the importance of boundary layer ingesting highly integrated intakes is briefly discussed. This is followed by a description of the analytical design of the generic intake model, the cryogenic blowdown tunnel DNW-KRG in which the experimental tests have been performed, and the measurement techniques. Thereafter, experimental findings are discussed in detail and conclusions are drawn.

Item URL in elib:https://elib.dlr.de/88152/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA 2014-0373; Chapter DOI: 10.2514/6.2014-0373; eISBN: 978-1-62410-256-1; DOI: 10.2514/masm14
Title:Experimental Investigations on the Influence of Ingesting Boundary Layers into a Diverterless S‐Duct Intake
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Rein, Martinmartin.rein (at) dlr.deUNSPECIFIED
Koch, Stefanstefan.koch (at) dlr.deUNSPECIFIED
Rütten, Markusmarkus.ruetten (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-15
Series Name:Conference Proceedings online
Keywords:S-duct intake, serpentine intake, diverterless intake, high aspect ratio intake, boundary layer ingestion, circumferential distortion descriptor, DC60, AIP, distortion rake, inverse flow ratio, DNW-KRG, pressure variations
Event Title:52nd Aerospace Sciences Meeting - AIAA SciTech
Event Location:National Harbor, Maryland, USA
Event Type:international Conference
Event Dates:13. - 17. Jan. 2014
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: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:17 Feb 2014 13:11
Last Modified:06 Feb 2015 14:49

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