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Douasbin, Quentin und Gröning, Stefan und Urbano, Annafederica und Selle, Laurent und Hardi, Justin und Armbruster, Wolfgang und Oschwald, Michael (2016) Joint experimental, LES and Helmholtz analysis of self-excited combustion instabilities in a hydrogen-oxygen rocket combustor. Thermoacoustic Instabilities in Gas Turbines and Rocket Engines: Industry meets Academia, 2016, 2016-05-30 - 2016-06-01, Munich, Germany.
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Kurzfassung
Self-excited combustion instabilities of the first tangential mode have been observed in a research combustor operated with hydrogen and oxygen in cryogenic state as propellants. A detailed analysis of this unstable mode is conducted and the experimental observations are compared with numerical simulations. A high fidelity Large-Eddy Simulation together with an acoustic eigenmode computation performed with a Helmholtz solver give complementary information on the mechanisms driving the instability. A methodology for the 3D reconstruction of the acoustic field is presented.
| elib-URL des Eintrags: | https://elib.dlr.de/133479/ | ||||||||||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||||||
| Titel: | Joint experimental, LES and Helmholtz analysis of self-excited combustion instabilities in a hydrogen-oxygen rocket combustor | ||||||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2016 | ||||||||||||||||||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
| Stichwörter: | combustion instabilities, rocket engines, hydrogen/oxygen, LES, Helmholtz solver | ||||||||||||||||||||||||||||||||
| Veranstaltungstitel: | Thermoacoustic Instabilities in Gas Turbines and Rocket Engines: Industry meets Academia, 2016 | ||||||||||||||||||||||||||||||||
| Veranstaltungsort: | Munich, Germany | ||||||||||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||||||
| Veranstaltungsbeginn: | 30 Mai 2016 | ||||||||||||||||||||||||||||||||
| Veranstaltungsende: | 1 Juni 2016 | ||||||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||
| HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||||||
| HGF - Programmthema: | Raumtransport | ||||||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | R RP - Raumtransport | ||||||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | R - Antriebsystemtechnik - Schubkammertechnologie (alt) | ||||||||||||||||||||||||||||||||
| Standort: | Lampoldshausen | ||||||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Raumfahrtantriebe > Raketenantriebe | ||||||||||||||||||||||||||||||||
| Hinterlegt von: | Hanke, Michaela | ||||||||||||||||||||||||||||||||
| Hinterlegt am: | 14 Jan 2020 08:44 | ||||||||||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 20:36 |
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