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Cross-Flow Phenomena in Streamline Traced Hypersonic Intakes

Karl, Sebastian and Steelant, Johan (2015) Cross-Flow Phenomena in Streamline Traced Hypersonic Intakes. American Institute of Aeronautics and Astronautics (AIAA). 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 06. - 09. July 2015, Glasgow, Scotland. DOI: 10.2514/6.2015-3594

Full text not available from this repository.

Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2015-3594

Abstract

The shape of streamline-traced intakes is defined by stream surfaces from an inviscid template flow field. Appropriate boundary layer corrections, i.e. local displacement thickness, are subsequently applied to the inviscid shape. This design methodology neglects, however, secondary effects such as the occurrence of local flow separation bubbles or crossflow phenomena 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 representative small scale stream-traced intake. The cross-flow was not anticipated during the design process and leads to a local accumulation of decelerated fluid in the vicinity of 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/93356/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA 2015-3594
Title:Cross-Flow Phenomena in Streamline Traced Hypersonic Intakes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Karl, Sebastiansebastian.karl (at) dlr.deUNSPECIFIED
Steelant, JohanESA-ESTEC, NLUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2015-3594
Page Range:pp. 1-13
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Series Name:Conference Proceedings online
Status:Published
Keywords:CFD, LAPCAT II, small scale flight experiment (SSFE), Scramjet Configuration
Event Title:20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Glasgow, Scotland
Event Type:international Conference
Event Dates:06. - 09. July 2015
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 - Numerische Verfahren und Simulation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Micknaus, Ilka
Deposited On:30 Sep 2015 10:25
Last Modified:30 Sep 2015 10:25

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