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Pressure Fluctuations (Buzzing) and Inlet Performance of an Airbreathing Missile

Herrmann, Dirk and Siebe, Frank and Gülhan, Ali (2013) Pressure Fluctuations (Buzzing) and Inlet Performance of an Airbreathing Missile. Journal of Propulsion and Power, Vol. 29 (No. 4), pp. 839-848. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.B34629 ISSN 0748-4658

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The performance of a rectangular ramjet inlet has been investigated experimentally. The main objective of the study has been to analyze the inlet flow before and during buzzing. Experiments have therefore been carried out with an inlet without and with boundary-layer bleed at an angle of attack of 0 deg and at Machnumbers ranging from 2.5 to 3.5 in the Trisonic Wind Tunnel Cologne. The inlet flow was analyzed with schlieren images and unsteady pressure recordings, where different pressure fluctuations are detected. The results show that the inlet flow is highly unsteady even at supercritical condition and that the subsequently added boundary-layer bleed permits better pressure recovery and a delay in inlet buzzing.

Item URL in elib:https://elib.dlr.de/83330/
Document Type:Article
Title:Pressure Fluctuations (Buzzing) and Inlet Performance of an Airbreathing Missile
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Herrmann, Dirkdirk.herrmann (at) dlr.deUNSPECIFIED
Siebe, Frankfrank.siebe (at) dlr.deUNSPECIFIED
Gülhan, Aliali.guelhan (at) dlr.deUNSPECIFIED
Date:July 2013
Journal or Publication Title:Journal of Propulsion and Power
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Volume:Vol. 29
DOI :10.2514/1.B34629
Page Range:pp. 839-848
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Series Name:Journal of Propulsion and Power
Keywords:Ramjet, Supersonic flow, Wind tunnel, Buzzing
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 > Über- und Hyperschalltechnologien
Deposited By: Herrmann, Dirk
Deposited On:22 Oct 2013 13:42
Last Modified:08 Mar 2018 18:44

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