Flock, Andreas K. und Gülhan, Ali (2017) Experimental and Numerical Performance Analysis of a Self-Starting Three-Dimensional Scramjet Intake. Journal of Propulsion and Power, 33 (6), Seiten 1570-1580. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.B36602. ISSN 0748-4658.
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Offizielle URL: https://doi.org/10.2514/1.B36602
Kurzfassung
In this work, a three-dimensional intake model was investigated in a blowdown wind tunnel and results were compared and complemented with Reynolds-averaged Navier–Stokes simulations. The intake model was equipped with a movable cowl with which the internal contraction ratio was set to the self-starting limit. Three different conditions were investigated: first, a v-shaped cowl geometry at a freestream Mach number of seven; second, a straight cowl geometry at a freestream Mach number of seven; and, finally, a v-shaped cowl geometry at a freestream Mach number of six. Furthermore, a one-dimensional postanalysis was performed to calculate overall engine parameters from stream-thrust-averaged intake performance parameters. Numerical results were within the experimental uncertainty, except for small displacements near separation regions. The mass capture ratio of the v-shaped cowl was slightly higher as compared to the straight cowl. When increasing the Mach number from six to seven, the specific impulse dropped from 2561 to 2100 s, respectively. For the Mach 7 configurations, a Maximum sustainable backpressure ratio of approximately 115 was measured. For the Mach 6 case, the maximum sustainable static backpressure ratio dropped to about 85. The maximum sustainable backpressure to operating backpressure ratio was around 4:1, and it was independent of the Mach number.
elib-URL des Eintrags: | https://elib.dlr.de/113599/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Experimental and Numerical Performance Analysis of a Self-Starting Three-Dimensional Scramjet Intake | ||||||||||||
Autoren: |
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Datum: | 14 Juli 2017 | ||||||||||||
Erschienen in: | Journal of Propulsion and Power | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
Band: | 33 | ||||||||||||
DOI: | 10.2514/1.B36602 | ||||||||||||
Seitenbereich: | Seiten 1570-1580 | ||||||||||||
Herausgeber: |
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Verlag: | American Institute of Aeronautics and Astronautics (AIAA) | ||||||||||||
ISSN: | 0748-4658 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Intake Starting, CFD Analysis, Airbreathing Propulsion, Wind Tunnel Experiments | ||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||
HGF - Programm: | keine Zuordnung | ||||||||||||
HGF - Programmthema: | E - keine Zuordnung | ||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||
DLR - Forschungsgebiet: | E - keine Zuordnung | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - keine Zuordnung | ||||||||||||
Standort: | Köln-Porz | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien, KP | ||||||||||||
Hinterlegt von: | Flock, Andreas | ||||||||||||
Hinterlegt am: | 23 Aug 2017 09:57 | ||||||||||||
Letzte Änderung: | 22 Nov 2023 07:48 |
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