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Cross-Flow Phenomena in Streamline Traced Hypersonic Intakes

Karl, Sebastian and Steelant, Johan (2017) Cross-Flow Phenomena in Streamline Traced Hypersonic Intakes. Journal of Propulsion and Power, 34 (2), pp. 449-459. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514 ISSN 0748-4658

Full text not available from this repository.

Official URL: https://arc.aiaa.org/doi/abs/10.2514/1.B36637

Abstract

Generally, the shape of streamline-traced intakes is defined by stream surfaces based upon an inviscid template flow field but corrected by appropriate local boundary layer displacement thicknesses. However, this design methodology neglects secondary effects such as the occurrence of cross-flow phenomena or local flow separation bubbles, which can lead to significant degradation of the overall intake performance. The present paper investigates the occurrence of cross flow phenomena within the boundary and entropy layers of a small scale stream-traced intake of a scramjet vehicle. The cross-flow was not anticipated during the design process and leads to a local accumulation of decelerated fluid near the combustor entrance. This effect lowers the margin against possible boundary layer separation and intake unstart. It is found that the cross-flow is mainly driven by inviscid phenomena principally linked to the presence of blunt leading edges.

Item URL in elib:https://elib.dlr.de/111415/
Document Type:Article
Additional Information:Publication Date (online): September 05, 2017; EISSN: 1533-3876; Paper DOI: 10.2514/1.B36637; 2018 in der gedruckten Ausgabe des Journals erschienen
Title:Cross-Flow Phenomena in Streamline Traced Hypersonic Intakes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Karl, SebastianSebastian.Karl (at) dlr.deUNSPECIFIED
Steelant, Johanjohan.steelant (at) esa.intUNSPECIFIED
Date:2017
Journal or Publication Title:Journal of Propulsion and Power
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:34
DOI :10.2514
Page Range:pp. 449-459
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0748-4658
Status:Published
Keywords:CFD, intake, turbulence, cross-flow, scramjet, hypersonic
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bachmann, Barbara
Deposited On:21 Dec 2017 15:54
Last Modified:27 Mar 2018 09:14

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