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Design and Performance Analysis of Three-Dimensional Air Intakes for Supersonic Combustion Ramjet Engines

Flock, Andreas K. (2017) Design and Performance Analysis of Three-Dimensional Air Intakes for Supersonic Combustion Ramjet Engines. Dissertation. DLR-Forschungsbericht. DLR-FB-2017-1, 153 S.

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Abstract

The Supersonic Combustion Ramjet (SCRamjet) engine is an efficient propulsion device for supersonic and hypersonic velocities. The present work focuses on the SCRamjet air intake which serves as the engine’s compressor. First, an analytical intake design tool was developed to generate so called streamline traced intake geometries. Second, the starting behavior of hypersonic air intakes was investigated experimentally in a blow down wind tunnel with a three-dimensional intake model with planar surfaces. A semi-empirical estimate was developed to predict intake starting of three-dimensional intake geometries. Third, the three-dimensional intake was further investigated experimentally and results were compared to numerical simulations. Finally, the performance of the three-dimensional intake was compared to the performance of different streamline traced intakes, designed with the analytical tool. Overall, the specific impulse of the streamline traced intakes was approximately 10 % higher compared to the three-dimensional intake configuration.

Item URL in elib:https://elib.dlr.de/111146/
Document Type:Monograph (DLR-Forschungsbericht, Dissertation)
Title:Design and Performance Analysis of Three-Dimensional Air Intakes for Supersonic Combustion Ramjet Engines
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Flock, Andreas K.andreas.flock (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:153
ISSN:1434-8454
Status:Published
Keywords:Hypersonics, Air-Breathing Propulsion, Scramjet, Analytical Intake Design, Supersonic Diffusor, Intake Starting
Institution:Institut für Aerodynamik und Strömungstechnik
Department:Abteilung Über- und Hyperschalltechnologien
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Flock, Andreas
Deposited On:29 Mar 2017 11:16
Last Modified:31 Jul 2019 20:08

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